102121202122212 has 96 divisors (see below), whose sum is σ = 293287323377664. Its totient is φ = 26931578486400.

The previous prime is 102121202122171. The next prime is 102121202122237. The reversal of 102121202122212 is 212221202121201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17294137 + ... + 22435007.

It is an arithmetic number, because the mean of its divisors is an integer number (3055076285184).

Almost surely, 2^{102121202122212} is an apocalyptic number.

102121202122212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102121202122212 is an abundant number, since it is smaller than the sum of its proper divisors (191166121255452).

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

102121202122212 is a wasteful number, since it uses less digits than its factorization.

102121202122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5159089 (or 5159087 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 102121202122212 its reverse (212221202121201), we get a palindrome (314342404243413).

The spelling of 102121202122212 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, two hundred twelve".