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220101111111020 = 22511005055555551
BaseRepresentation
bin110010000010111001001000…
…100010101101110101101100
31001212022110102212111012020212
4302002321020202231311230
5212322114033421023040
62100041015441401552
764234531500525566
oct6202711042556554
91055273385435225
10220101111111020
11641493a221a657
12208290a09392b8
1395a75a4323499
143c4cd446d4336
151a6a50598cd65
hexc82e488add6c

220101111111020 has 12 divisors (see below), whose sum is σ = 462212333333184. Its totient is φ = 88040444444400.

The previous prime is 220101111110999. The next prime is 220101111111059. The reversal of 220101111111020 is 20111111101022.

It is a super-2 number, since 2×2201011111110202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220101111110986 and 220101111111004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5502527777756 + ... + 5502527777795.

It is an arithmetic number, because the mean of its divisors is an integer number (38517694444432).

Almost surely, 2220101111111020 is an apocalyptic number.

220101111111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101111111020 is an abundant number, since it is smaller than the sum of its proper divisors (242111222222164).

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

220101111111020 is a wasteful number, since it uses less digits than its factorization.

220101111111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005055555560 (or 11005055555558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 220101111111020 its reverse (20111111101022), we get a palindrome (240212222212042).

The spelling of 220101111111020 in words is "two hundred twenty trillion, one hundred one billion, one hundred eleven million, one hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 11005055555551 22010111111102 44020222222204 55025277777755 110050555555510 220101111111020