102112120120220 has 72 divisors (see below), whose sum is σ = 249447458214864. Its totient is φ = 35009569937664.

The previous prime is 102112120120189. The next prime is 102112120120277. The reversal of 102112120120220 is 22021021211201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135022664 + ... + 135776816.

It is an arithmetic number, because the mean of its divisors is an integer number (3464548030762).

Almost surely, 2^{102112120120220} is an apocalyptic number.

102112120120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102112120120220 is an abundant number, since it is smaller than the sum of its proper divisors (147335338094644).

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

102112120120220 is a wasteful number, since it uses less digits than its factorization.

102112120120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892339 (or 892330 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102112120120220 its reverse (22021021211201), we get a palindrome (124133141331421).

The spelling of 102112120120220 in words is "one hundred two trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty thousand, two hundred twenty".