21031022022131 has 8 divisors (see below), whose sum is σ = 22943139760128. Its totient is φ = 19118938725000.

The previous prime is 21031022022079. The next prime is 21031022022149. The reversal of 21031022022131 is 13122022013012.

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

It is a cyclic number.

It is not a de Polignac number, because 21031022022131 - 2⁴² = 16632975511027 is a prime.

It is a super-2 number, since 2×21031022022131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21031022027131) 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, 7325075 + ... + 9783596.

It is an arithmetic number, because the mean of its divisors is an integer number (2867892470016).

Almost surely, 2^{21031022022131} is an apocalyptic number.

21031022022131 is a deficient number, since it is larger than the sum of its proper divisors (1912117737997).

21031022022131 is a wasteful number, since it uses less digits than its factorization.

21031022022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17220433.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21031022022131 its reverse (13122022013012), we get a palindrome (34153044035143).

The spelling of 21031022022131 in words is "twenty-one trillion, thirty-one billion, twenty-two million, twenty-two thousand, one hundred thirty-one".