102021012221000 has 128 divisors (see below), whose sum is σ = 266075854387200. Its totient is φ = 36386441395200.

The previous prime is 102021012220969. The next prime is 102021012221039. The reversal of 102021012221000 is 122210120201.

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, 157604264 + ... + 158250263.

It is an arithmetic number, because the mean of its divisors is an integer number (2078717612400).

Almost surely, 2^{102021012221000} is an apocalyptic number.

102021012221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021012221000 is an abundant number, since it is smaller than the sum of its proper divisors (164054842166200).

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

102021012221000 is a wasteful number, since it uses less digits than its factorization.

102021012221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315854584 (or 315854570 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102021012221000 its reverse (122210120201), we get a palindrome (102143222341201).

The spelling of 102021012221000 in words is "one hundred two trillion, twenty-one billion, twelve million, two hundred twenty-one thousand".