1212132772 has 12 divisors (see below), whose sum is σ = 2122758400. Its totient is φ = 605630376.

The previous prime is 1212132743. The next prime is 1212132809. The reversal of 1212132772 is 2772312121.

It is a super-4 number, since 4×1212132772⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1212132772.

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, 102708 + ... + 113899.

Almost surely, 2^1212132772 is an apocalyptic number.

It is an amenable number.

1212132772 is a deficient number, since it is larger than the sum of its proper divisors (910625628).

1212132772 is a wasteful number, since it uses less digits than its factorization.

1212132772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218010 (or 218008 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 1212132772 is about 34815.6972068635. The cubic root of 1212132772 is about 1066.2279537430.

Adding to 1212132772 its reverse (2772312121), we get a palindrome (3984444893).

The spelling of 1212132772 in words is "one billion, two hundred twelve million, one hundred thirty-two thousand, seven hundred seventy-two".