31220132032222 has 12 divisors (see below), whose sum is σ = 54475944668640. Its totient is φ = 13380056585196.

The previous prime is 31220132032097. The next prime is 31220132032231. The reversal of 31220132032222 is 22223023102213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159286387822 + ... + 159286388017.

It is an arithmetic number, because the mean of its divisors is an integer number (4539662055720).

Almost surely, 2^{31220132032222} is an apocalyptic number.

31220132032222 is a deficient number, since it is larger than the sum of its proper divisors (23255812636418).

31220132032222 is a wasteful number, since it uses less digits than its factorization.

31220132032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318572775855 (or 318572775848 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31220132032222 its reverse (22223023102213), we get a palindrome (53443155134435).

The spelling of 31220132032222 in words is "thirty-one trillion, two hundred twenty billion, one hundred thirty-two million, thirty-two thousand, two hundred twenty-two".