102001112212 has 6 divisors (see below), whose sum is σ = 178501946378. Its totient is φ = 51000556104.

The previous prime is 102001112111. The next prime is 102001112219. The reversal of 102001112212 is 212211100201.

It can be written as a sum of positive squares in only one way, i.e., 55373619856 + 46627492356 = 235316^2 + 215934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102001112192 and 102001112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001112219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12750139023 + ... + 12750139030.

Almost surely, 2^102001112212 is an apocalyptic number.

It is an amenable number.

102001112212 is a deficient number, since it is larger than the sum of its proper divisors (76500834166).

102001112212 is a wasteful number, since it uses less digits than its factorization.

102001112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25500278057 (or 25500278055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102001112212 its reverse (212211100201), we get a palindrome (314212212413).

The spelling of 102001112212 in words is "one hundred two billion, one million, one hundred twelve thousand, two hundred twelve".