102206215572 has 24 divisors (see below), whose sum is σ = 238489055616. Its totient is φ = 34067611968.

The previous prime is 102206215567. The next prime is 102206215609. The reversal of 102206215572 is 275512602201.

It is a super-2 number, since 2×102206215572² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 289893 + ... + 537075.

It is an arithmetic number, because the mean of its divisors is an integer number (9937043984).

Almost surely, 2^102206215572 is an apocalyptic number.

102206215572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102206215572 is an abundant number, since it is smaller than the sum of its proper divisors (136282840044).

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

102206215572 is a wasteful number, since it uses less digits than its factorization.

102206215572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281647 (or 281645 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

Adding to 102206215572 its reverse (275512602201), we get a palindrome (377718817773).

The spelling of 102206215572 in words is "one hundred two billion, two hundred six million, two hundred fifteen thousand, five hundred seventy-two".