13252221512 has 64 divisors (see below), whose sum is σ = 26119082880. Its totient is φ = 6291597312.

The previous prime is 13252221487. The next prime is 13252221533. The reversal of 13252221512 is 21512225231.

It is a happy number.

It is a super-2 number, since 2×13252221512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24226823 + ... + 24227369.

It is an arithmetic number, because the mean of its divisors is an integer number (408110670).

Almost surely, 2^13252221512 is an apocalyptic number.

It is an amenable number.

13252221512 is a deficient number, since it is larger than the sum of its proper divisors (12866861368).

13252221512 is a wasteful number, since it uses less digits than its factorization.

13252221512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302 (or 1298 counting only the distinct ones).

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

Adding to 13252221512 its reverse (21512225231), we get a palindrome (34764446743).

The spelling of 13252221512 in words is "thirteen billion, two hundred fifty-two million, two hundred twenty-one thousand, five hundred twelve".