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220202002220020 = 22567235169897853
BaseRepresentation
bin110010000100010111000110…
…000111110000001111110100
31001212200002212010220120020121
4302010113012013300033310
5212330242200032020040
62100155223040141324
764245032615022532
oct6204270607601764
91055602763816217
10220202002220020
1164188165665077
1220844759007844
1395b3c62635752
143c53b95c39152
151a6ce5d049c4a
hexc845c61f03f4

220202002220020 has 48 divisors (see below), whose sum is σ = 469525693448448. Its totient is φ = 86729254761600.

The previous prime is 220202002220003. The next prime is 220202002220021. The reversal of 220202002220020 is 20022200202022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220202002219976 and 220202002220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202002220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31798587 + ... + 38099266.

It is an arithmetic number, because the mean of its divisors is an integer number (9781785280176).

Almost surely, 2220202002220020 is an apocalyptic number.

220202002220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202002220020 is an abundant number, since it is smaller than the sum of its proper divisors (249323691228428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220202002220020 is a wasteful number, since it uses less digits than its factorization.

220202002220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69900280 (or 69900278 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 220202002220020 its reverse (20022200202022), we get a palindrome (240224202422042).

The spelling of 220202002220020 in words is "two hundred twenty trillion, two hundred two billion, two million, two hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 2351 4702 9404 11755 23510 47020 157517 315034 630068 787585 1575170 3150340 69897853 139795706 279591412 349489265 698978530 1397957060 4683156151 9366312302 18732624604 23415780755 46831561510 93663123020 164329852403 328659704806 657319409612 821649262015 1643298524030 3286597048060 11010100111001 22020200222002 44040400444004 55050500555005 110101001110010 220202002220020