1212972972 has 48 divisors (see below), whose sum is σ = 2886468480. Its totient is φ = 396375552.

The previous prime is 1212972953. The next prime is 1212972973. The reversal of 1212972972 is 2792792121.

It is not an unprimeable number, because it can be changed into a prime (1212972973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119679 + ... + 129417.

It is an arithmetic number, because the mean of its divisors is an integer number (60134760).

Almost surely, 2^1212972972 is an apocalyptic number.

1212972972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212972972 is an abundant number, since it is smaller than the sum of its proper divisors (1673495508).

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

1212972972 is a wasteful number, since it uses less digits than its factorization.

1212972972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950 (or 9948 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 1212972972 is about 34827.7615129081. The cubic root of 1212972972 is about 1066.4742517943.

The spelling of 1212972972 in words is "one billion, two hundred twelve million, nine hundred seventy-two thousand, nine hundred seventy-two".