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210002022001220 = 22510500101100061
BaseRepresentation
bin101111101111111011100111…
…111011000110101001000100
31000112112222220222121121121212
4233233323213323012221010
5210011133120113014340
62022345332545030552
762143100605466321
oct5757734773065104
91015488828547555
10210002022001220
1160a053a2750859
121b677970325458
13902414b2c5a17
1439c021b4d7b48
15194297b78da65
hexbefee7ec6a44

210002022001220 has 12 divisors (see below), whose sum is σ = 441004246202604. Its totient is φ = 84000808800480.

The previous prime is 210002022001201. The next prime is 210002022001229. The reversal of 210002022001220 is 22100220200012.

It can be written as a sum of positive squares in 2 ways, for example, as 145194595307584 + 64807426693636 = 12049672^2 + 8050306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210002022001195 and 210002022001204.

It is not an unprimeable number, because it can be changed into a prime (210002022001229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250050550011 + ... + 5250050550050.

It is an arithmetic number, because the mean of its divisors is an integer number (36750353850217).

Almost surely, 2210002022001220 is an apocalyptic number.

210002022001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210002022001220 is an abundant number, since it is smaller than the sum of its proper divisors (231002224201384).

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

210002022001220 is a wasteful number, since it uses less digits than its factorization.

210002022001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500101100070 (or 10500101100068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210002022001220 its reverse (22100220200012), we get a palindrome (232102242201232).

The spelling of 210002022001220 in words is "two hundred ten trillion, two billion, twenty-two million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 10500101100061 21000202200122 42000404400244 52500505500305 105001011000610 210002022001220