1212868056 has 32 divisors (see below), whose sum is σ = 3129984000. Its totient is φ = 391247520.

The previous prime is 1212868031. The next prime is 1212868081. The reversal of 1212868056 is 6508682121.

It is an interprime number because it is at equal distance from previous prime (1212868031) and next prime (1212868081).

It is a congruent number.

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, 814356 + ... + 815843.

It is an arithmetic number, because the mean of its divisors is an integer number (97812000).

Almost surely, 2^1212868056 is an apocalyptic number.

It is an amenable number.

1212868056 is an abundant number, since it is smaller than the sum of its proper divisors (1917115944).

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

1212868056 is a wasteful number, since it uses less digits than its factorization.

1212868056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630239 (or 1630235 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1212868056 is about 34826.2552681163. The cubic root of 1212868056 is about 1066.4435027061.

The spelling of 1212868056 in words is "one billion, two hundred twelve million, eight hundred sixty-eight thousand, fifty-six".