102021212110220 has 24 divisors (see below), whose sum is σ = 230724895080624. Its totient is φ = 37669370625216.

The previous prime is 102021212110199. The next prime is 102021212110229. The reversal of 102021212110220 is 22011212120201.

It is not an unprimeable number, because it can be changed into a prime (102021212110229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196194638414 + ... + 196194638933.

It is an arithmetic number, because the mean of its divisors is an integer number (9613537295026).

Almost surely, 2^{102021212110220} is an apocalyptic number.

102021212110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021212110220 is an abundant number, since it is smaller than the sum of its proper divisors (128703682970404).

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

102021212110220 is a wasteful number, since it uses less digits than its factorization.

102021212110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392389277369 (or 392389277367 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102021212110220 its reverse (22011212120201), we get a palindrome (124032424230421).

The spelling of 102021212110220 in words is "one hundred two trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, two hundred twenty".