128102212 has 12 divisors (see below), whose sum is σ = 256204480. Its totient is φ = 54900936.

The previous prime is 128102201. The next prime is 128102243. The reversal of 128102212 is 212201821.

128102212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 128102212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2287512 + ... + 2287567.

Almost surely, 2^128102212 is an apocalyptic number.

It is an amenable number.

128102212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128102212 is a wasteful number, since it uses less digits than its factorization.

128102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4575090 (or 4575088 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 128102212 is about 11318.2247724632. The cubic root of 128102212 is about 504.1025291116.

The spelling of 128102212 in words is "one hundred twenty-eight million, one hundred two thousand, two hundred twelve".