102120020220120 has 64 divisors (see below), whose sum is σ = 350125783614720. Its totient is φ = 23341718907264.

The previous prime is 102120020220083. The next prime is 102120020220173. The reversal of 102120020220120 is 21022020021201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102120020220120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60785725482 + ... + 60785727161.

It is an arithmetic number, because the mean of its divisors is an integer number (5470715368980).

Almost surely, 2^{102120020220120} is an apocalyptic number.

102120020220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102120020220120 is an abundant number, since it is smaller than the sum of its proper divisors (248005763394600).

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

102120020220120 is a wasteful number, since it uses less digits than its factorization.

102120020220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121571452664 (or 121571452660 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102120020220120 its reverse (21022020021201), we get a palindrome (123142040241321).

The spelling of 102120020220120 in words is "one hundred two trillion, one hundred twenty billion, twenty million, two hundred twenty thousand, one hundred twenty".