1237165221272 has 16 divisors (see below), whose sum is σ = 2363452428240. Its totient is φ = 606911240416.

The previous prime is 1237165221269. The next prime is 1237165221283. The reversal of 1237165221272 is 2721225617321.

It is a congruent number.

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, 1458920828 + ... + 1458921675.

It is an arithmetic number, because the mean of its divisors is an integer number (147715776765).

Almost surely, 2^{1237165221272} is an apocalyptic number.

It is an amenable number.

1237165221272 is a deficient number, since it is larger than the sum of its proper divisors (1126287206968).

1237165221272 is a wasteful number, since it uses less digits than its factorization.

1237165221272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917842562 (or 2917842558 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The spelling of 1237165221272 in words is "one trillion, two hundred thirty-seven billion, one hundred sixty-five million, two hundred twenty-one thousand, two hundred seventy-two".