102021210222220 has 48 divisors (see below), whose sum is σ = 215265991868928. Its totient is φ = 40614088079360.

The previous prime is 102021210222209. The next prime is 102021210222229. The reversal of 102021210222220 is 22222012120201.

It is not an unprimeable number, because it can be changed into a prime (102021210222229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4651812 + ... + 15022708.

It is an arithmetic number, because the mean of its divisors is an integer number (4484708163936).

Almost surely, 2^{102021210222220} is an apocalyptic number.

102021210222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021210222220 is an abundant number, since it is smaller than the sum of its proper divisors (113244781646708).

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

102021210222220 is a wasteful number, since it uses less digits than its factorization.

102021210222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373250 (or 10373248 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102021210222220 its reverse (22222012120201), we get a palindrome (124243222342421).

The spelling of 102021210222220 in words is "one hundred two trillion, twenty-one billion, two hundred ten million, two hundred twenty-two thousand, two hundred twenty".