1225144873672 has 32 divisors (see below), whose sum is σ = 2324831258880. Its totient is φ = 605217473280.

The previous prime is 1225144873609. The next prime is 1225144873691. The reversal of 1225144873672 is 2763784415221.

It is a super-2 number, since 2×1225144873672² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1369713 + ... + 2080000.

It is an arithmetic number, because the mean of its divisors is an integer number (72650976840).

Almost surely, 2^{1225144873672} is an apocalyptic number.

It is an amenable number.

1225144873672 is a deficient number, since it is larger than the sum of its proper divisors (1099686385208).

1225144873672 is a wasteful number, since it uses less digits than its factorization.

1225144873672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450253 (or 3450249 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 52.

The spelling of 1225144873672 in words is "one trillion, two hundred twenty-five billion, one hundred forty-four million, eight hundred seventy-three thousand, six hundred seventy-two".