22131901 has 8 divisors (see below), whose sum is σ = 24976800. Its totient is φ = 19425840.

The previous prime is 22131887. The next prime is 22131913. The reversal of 22131901 is 10913122.

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 22131901 - 2¹¹ = 22129853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131931) 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, 34371 + ... + 35008.

It is an arithmetic number, because the mean of its divisors is an integer number (3122100).

Almost surely, 2^22131901 is an apocalyptic number.

It is an amenable number.

22131901 is a deficient number, since it is larger than the sum of its proper divisors (2844899).

22131901 is a wasteful number, since it uses less digits than its factorization.

22131901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69419.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 22131901 is about 4704.4554413875. The cubic root of 22131901 is about 280.7628052034.

It can be divided in two parts, 22131 and 901, that added together give a palindrome (23032).

The spelling of 22131901 in words is "twenty-two million, one hundred thirty-one thousand, nine hundred one".