531225104012 has 12 divisors (see below), whose sum is σ = 931175474880. Its totient is φ = 265174968336.

The previous prime is 531225104009. The next prime is 531225104017. The reversal of 531225104012 is 210401522135.

It is a super-2 number, since 2×531225104012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531225104017) 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, 109393187 + ... + 109398042.

It is an arithmetic number, because the mean of its divisors is an integer number (77597956240).

Almost surely, 2^531225104012 is an apocalyptic number.

It is an amenable number.

531225104012 is a deficient number, since it is larger than the sum of its proper divisors (399950370868).

531225104012 is a wasteful number, since it uses less digits than its factorization.

531225104012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218791840 (or 218791838 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 531225104012 its reverse (210401522135), we get a palindrome (741626626147).

The spelling of 531225104012 in words is "five hundred thirty-one billion, two hundred twenty-five million, one hundred four thousand, twelve".