102021221010 has 32 divisors (see below), whose sum is σ = 245461560192. Its totient is φ = 27137811200.

The previous prime is 102021220979. The next prime is 102021221021. The reversal of 102021221010 is 10122120201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4228254 + ... + 4252313.

It is an arithmetic number, because the mean of its divisors is an integer number (7670673756).

Almost surely, 2^102021221010 is an apocalyptic number.

102021221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102021221010 is an abundant number, since it is smaller than the sum of its proper divisors (143440339182).

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

102021221010 is a wasteful number, since it uses less digits than its factorization.

102021221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480978.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102021221010 its reverse (10122120201), we get a palindrome (112143341211).

The spelling of 102021221010 in words is "one hundred two billion, twenty-one million, two hundred twenty-one thousand, ten".