102021111202120 has 32 divisors (see below), whose sum is σ = 250415454769920. Its totient is φ = 37098585891520.

The previous prime is 102021111202079. The next prime is 102021111202133. The reversal of 102021111202120 is 21202111120201.

It is a junction number, because it is equal to n+sod(n) for n = 102021111202094 and 102021111202103.

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, 115933080472 + ... + 115933081351.

It is an arithmetic number, because the mean of its divisors is an integer number (7825482961560).

Almost surely, 2^{102021111202120} is an apocalyptic number.

102021111202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021111202120 is an abundant number, since it is smaller than the sum of its proper divisors (148394343567800).

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

102021111202120 is a wasteful number, since it uses less digits than its factorization.

102021111202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231866161845 (or 231866161841 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102021111202120 its reverse (21202111120201), we get a palindrome (123223222322321).

The spelling of 102021111202120 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, two hundred two thousand, one hundred twenty".