102551212 has 12 divisors (see below), whose sum is σ = 179599896. Its totient is φ = 51236960.

The previous prime is 102551179. The next prime is 102551219. The reversal of 102551212 is 212155201.

It is a self number, because there is not a number n which added to its sum of digits gives 102551212.

It is not an unprimeable number, because it can be changed into a prime (102551219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3214 + ... + 14677.

It is an arithmetic number, because the mean of its divisors is an integer number (14966658).

Almost surely, 2^102551212 is an apocalyptic number.

It is an amenable number.

102551212 is a deficient number, since it is larger than the sum of its proper divisors (77048684).

102551212 is a wasteful number, since it uses less digits than its factorization.

102551212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19328 (or 19326 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 102551212 is about 10126.7572302292. The cubic root of 102551212 is about 468.0730095267.

The spelling of 102551212 in words is "one hundred two million, five hundred fifty-one thousand, two hundred twelve".