20022133121321 has 8 divisors (see below), whose sum is σ = 20038969194888. Its totient is φ = 20005303680000.

The previous prime is 20022133121281. The next prime is 20022133121447. The reversal of 20022133121321 is 12312133122002.

It can be written as a sum of positive squares in 4 ways, for example, as 2189248711321 + 17832884410000 = 1479611^2 + 4222900^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022133121321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022133120321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4391561 + ... + 7702601.

It is an arithmetic number, because the mean of its divisors is an integer number (2504871149361).

Almost surely, 2^{20022133121321} is an apocalyptic number.

It is an amenable number.

20022133121321 is a deficient number, since it is larger than the sum of its proper divisors (16836073567).

20022133121321 is a wasteful number, since it uses less digits than its factorization.

20022133121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316123.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20022133121321 its reverse (12312133122002), we get a palindrome (32334266243323).

The spelling of 20022133121321 in words is "twenty trillion, twenty-two billion, one hundred thirty-three million, one hundred twenty-one thousand, three hundred twenty-one".