12221020011232 has 48 divisors (see below), whose sum is σ = 24138562397040. Its totient is φ = 6090602047488.

The previous prime is 12221020011223. The next prime is 12221020011247. The reversal of 12221020011232 is 23211002012221.

It is a super-2 number, since 2×12221020011232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 37224694 + ... + 37551562.

It is an arithmetic number, because the mean of its divisors is an integer number (502886716605).

Almost surely, 2^{12221020011232} is an apocalyptic number.

It is an amenable number.

12221020011232 is a deficient number, since it is larger than the sum of its proper divisors (11917542385808).

12221020011232 is a wasteful number, since it uses less digits than its factorization.

12221020011232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330683 (or 330675 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12221020011232 its reverse (23211002012221), we get a palindrome (35432022023453).

The spelling of 12221020011232 in words is "twelve trillion, two hundred twenty-one billion, twenty million, eleven thousand, two hundred thirty-two".