102001211010120 has 128 divisors (see below), whose sum is σ = 325111036435200. Its totient is φ = 25552586658816.

The previous prime is 102001211010109. The next prime is 102001211010143. The reversal of 102001211010120 is 21010112100201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102001211010096 and 102001211010105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395961684 + ... + 396219203.

It is an arithmetic number, because the mean of its divisors is an integer number (2539929972150).

Almost surely, 2^{102001211010120} is an apocalyptic number.

102001211010120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001211010120 is an abundant number, since it is smaller than the sum of its proper divisors (223109825425080).

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

102001211010120 is a wasteful number, since it uses less digits than its factorization.

102001211010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792180967 (or 792180963 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102001211010120 its reverse (21010112100201), we get a palindrome (123011323110321).

The spelling of 102001211010120 in words is "one hundred two trillion, one billion, two hundred eleven million, ten thousand, one hundred twenty".