1247211064472 has 16 divisors (see below), whose sum is σ = 2338584199200. Its totient is φ = 623588611360.

The previous prime is 1247211064471. The next prime is 1247211064481. The reversal of 1247211064472 is 2744601127421.

It is a super-3 number, since 3×1247211064472³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247211064471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1799072 + ... + 2393967.

It is an arithmetic number, because the mean of its divisors is an integer number (146161512450).

Almost surely, 2^{1247211064472} is an apocalyptic number.

It is an amenable number.

1247211064472 is a deficient number, since it is larger than the sum of its proper divisors (1091373134728).

1247211064472 is a wasteful number, since it uses less digits than its factorization.

1247211064472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230226 (or 4230222 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 41.

The spelling of 1247211064472 in words is "one trillion, two hundred forty-seven billion, two hundred eleven million, sixty-four thousand, four hundred seventy-two".