22021432131 has 8 divisors (see below), whose sum is σ = 29385236160. Its totient is φ = 14669291432.

The previous prime is 22021432129. The next prime is 22021432157. The reversal of 22021432131 is 13123412022.

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 22021432131 - 2¹ = 22021432129 is a prime.

It is a super-2 number, since 2×22021432131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22021432098 and 22021432107.

It is not an unprimeable number, because it can be changed into a prime (22021432031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911425 + ... + 2918978.

It is an arithmetic number, because the mean of its divisors is an integer number (3673154520).

Almost surely, 2^22021432131 is an apocalyptic number.

22021432131 is a deficient number, since it is larger than the sum of its proper divisors (7363804029).

22021432131 is a wasteful number, since it uses less digits than its factorization.

22021432131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831665.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22021432131 its reverse (13123412022), we get a palindrome (35144844153).

The spelling of 22021432131 in words is "twenty-two billion, twenty-one million, four hundred thirty-two thousand, one hundred thirty-one".