102211231020 has 24 divisors (see below), whose sum is σ = 286191447024. Its totient is φ = 27256328256.

The previous prime is 102211231019. The next prime is 102211231033. The reversal of 102211231020 is 20132112201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851760199 + ... + 851760318.

It is an arithmetic number, because the mean of its divisors is an integer number (11924643626).

Almost surely, 2^102211231020 is an apocalyptic number.

102211231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102211231020 is an abundant number, since it is smaller than the sum of its proper divisors (183980216004).

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

102211231020 is a wasteful number, since it uses less digits than its factorization.

102211231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703520529 (or 1703520527 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102211231020 its reverse (20132112201), we get a palindrome (122343343221).

The spelling of 102211231020 in words is "one hundred two billion, two hundred eleven million, two hundred thirty-one thousand, twenty".