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12202120211020 = 2253659166741189
BaseRepresentation
bin1011000110010000011100…
…0010100110101001001100
31121012111210201220200000221
42301210013002212221030
53044404420233223040
641541324315401124
72366400625321525
oct261440702465114
947174721820027
1012202120211020
113984987828a13
121450a294531a4
136a686905509c
1430282b4cb84c
151626125a074a
hexb19070a6a4c

12202120211020 has 24 divisors (see below), whose sum is σ = 25631455726800. Its totient is φ = 4879514125632.

The previous prime is 12202120211011. The next prime is 12202120211051. The reversal of 12202120211020 is 2011202120221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12202120210985 and 12202120211003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83297415 + ... + 83443774.

It is an arithmetic number, because the mean of its divisors is an integer number (1067977321950).

Almost surely, 212202120211020 is an apocalyptic number.

12202120211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202120211020 is an abundant number, since it is smaller than the sum of its proper divisors (13429335515780).

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

12202120211020 is a wasteful number, since it uses less digits than its factorization.

12202120211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166744857 (or 166744855 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12202120211020 its reverse (2011202120221), we get a palindrome (14213322331241).

The spelling of 12202120211020 in words is "twelve trillion, two hundred two billion, one hundred twenty million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 3659 7318 14636 18295 36590 73180 166741189 333482378 666964756 833705945 1667411890 3334823780 610106010551 1220212021102 2440424042204 3050530052755 6101060105510 12202120211020