102022222212 has 72 divisors (see below), whose sum is σ = 262748729880. Its totient is φ = 33372595200.

The previous prime is 102022222207. The next prime is 102022222261. The reversal of 102022222212 is 212222220201.

It can be written as a sum of positive squares in 4 ways, for example, as 3698585856 + 98323636356 = 60816^2 + 313566^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 286714 + ... + 535022.

It is an arithmetic number, because the mean of its divisors is an integer number (3649287915).

Almost surely, 2^102022222212 is an apocalyptic number.

102022222212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102022222212 is an abundant number, since it is smaller than the sum of its proper divisors (160726507668).

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

102022222212 is a wasteful number, since it uses less digits than its factorization.

102022222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248533 (or 248528 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102022222212 its reverse (212222220201), we get a palindrome (314244442413).

The spelling of 102022222212 in words is "one hundred two billion, twenty-two million, two hundred twenty-two thousand, two hundred twelve".