22021100131 has 8 divisors (see below), whose sum is σ = 22195470528. Its totient is φ = 21846825000.

The previous prime is 22021100117. The next prime is 22021100173. The reversal of 22021100131 is 13100112022.

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-22021100131 is a prime.

It is a super-2 number, since 2×22021100131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22021110131) 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, 482656 + ... + 526306.

It is an arithmetic number, because the mean of its divisors is an integer number (2774433816).

Almost surely, 2^22021100131 is an apocalyptic number.

22021100131 is a deficient number, since it is larger than the sum of its proper divisors (174370397).

22021100131 is a wasteful number, since it uses less digits than its factorization.

22021100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47633.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22021100131 its reverse (13100112022), we get a palindrome (35121212153).

It can be divided in two parts, 22021100 and 131, that multiplied together give a square (2884764100 = 53710²).

The spelling of 22021100131 in words is "twenty-two billion, twenty-one million, one hundred thousand, one hundred thirty-one".