1212622672 has 10 divisors (see below), whose sum is σ = 2349456458. Its totient is φ = 606311328.

The previous prime is 1212622651. The next prime is 1212622681. The reversal of 1212622672 is 2762262121.

It can be written as a sum of positive squares in only one way, i.e., 1183635216 + 28987456 = 34404^2 + 5384^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37894443 + ... + 37894474.

Almost surely, 2^1212622672 is an apocalyptic number.

It is an amenable number.

1212622672 is a deficient number, since it is larger than the sum of its proper divisors (1136833786).

1212622672 is an equidigital number, since it uses as much as digits as its factorization.

1212622672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75788925 (or 75788919 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1212622672 is about 34822.7321156741. The cubic root of 1212622672 is about 1066.3715779211.

Adding to 1212622672 its reverse (2762262121), we get a palindrome (3974884793).

The spelling of 1212622672 in words is "one billion, two hundred twelve million, six hundred twenty-two thousand, six hundred seventy-two".