20120021331322 has 16 divisors (see below), whose sum is σ = 33813500224032. Its totient is φ = 8898289531920.

The previous prime is 20120021331317. The next prime is 20120021331373. The reversal of 20120021331322 is 22313312002102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20120021331293 and 20120021331302.

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, 12358734648 + ... + 12358736275.

It is an arithmetic number, because the mean of its divisors is an integer number (2113343764002).

Almost surely, 2^{20120021331322} is an apocalyptic number.

20120021331322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20120021331322 is a deficient number, since it is larger than the sum of its proper divisors (13693478892710).

20120021331322 is a wasteful number, since it uses less digits than its factorization.

20120021331322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24717470973.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20120021331322 its reverse (22313312002102), we get a palindrome (42433333333424).

The spelling of 20120021331322 in words is "twenty trillion, one hundred twenty billion, twenty-one million, three hundred thirty-one thousand, three hundred twenty-two".