20112131221322 has 96 divisors (see below), whose sum is σ = 35885766306816. Its totient is φ = 8426715292800.

The previous prime is 20112131221267. The next prime is 20112131221349. The reversal of 20112131221322 is 22312213121102.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1492323248 + ... + 1492336724.

It is an arithmetic number, because the mean of its divisors is an integer number (373810065696).

Almost surely, 2^{20112131221322} is an apocalyptic number.

20112131221322 is a deficient number, since it is larger than the sum of its proper divisors (15773635085494).

20112131221322 is a wasteful number, since it uses less digits than its factorization.

20112131221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15052 (or 15045 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20112131221322 its reverse (22312213121102), we get a palindrome (42424344342424).

The spelling of 20112131221322 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-two".