1225244135312 has 40 divisors (see below), whose sum is σ = 2477472056640. Its totient is φ = 585903992960.

The previous prime is 1225244135281. The next prime is 1225244135317. The reversal of 1225244135312 is 2135314425221.

It is a super-2 number, since 2×1225244135312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1225244135317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429987 + ... + 2890557.

It is an arithmetic number, because the mean of its divisors is an integer number (61936801416).

Almost surely, 2^{1225244135312} is an apocalyptic number.

It is an amenable number.

1225244135312 is an abundant number, since it is smaller than the sum of its proper divisors (1252227921328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225244135312 is a wasteful number, since it uses less digits than its factorization.

1225244135312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467831 (or 467825 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The spelling of 1225244135312 in words is "one trillion, two hundred twenty-five billion, two hundred forty-four million, one hundred thirty-five thousand, three hundred twelve".