102121010011212 has 24 divisors (see below), whose sum is σ = 238430450185200. Its totient is φ = 34019180457216.

The previous prime is 102121010011169. The next prime is 102121010011249. The reversal of 102121010011212 is 212110010121201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102121010011191 and 102121010011200.

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, 2644506537 + ... + 2644545152.

It is an arithmetic number, because the mean of its divisors is an integer number (9934602091050).

Almost surely, 2^{102121010011212} is an apocalyptic number.

102121010011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102121010011212 is an abundant number, since it is smaller than the sum of its proper divisors (136309440173988).

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

102121010011212 is a wasteful number, since it uses less digits than its factorization.

102121010011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289053305 (or 5289053303 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102121010011212 its reverse (212110010121201), we get a palindrome (314231020132413).

The spelling of 102121010011212 in words is "one hundred two trillion, one hundred twenty-one billion, ten million, eleven thousand, two hundred twelve".