22013201231 has 8 divisors (see below), whose sum is σ = 25182641280. Its totient is φ = 18849935448.

The previous prime is 22013201219. The next prime is 22013201239. The reversal of 22013201231 is 13210231022.

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 22013201231 - 2⁶ = 22013201167 is a prime.

It is a super-2 number, since 2×22013201231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013201239) 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, 1535921 + ... + 1550186.

It is an arithmetic number, because the mean of its divisors is an integer number (3147830160).

Almost surely, 2^22013201231 is an apocalyptic number.

22013201231 is a deficient number, since it is larger than the sum of its proper divisors (3169440049).

22013201231 is a wasteful number, since it uses less digits than its factorization.

22013201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087133.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22013201231 its reverse (13210231022), we get a palindrome (35223432253).

The spelling of 22013201231 in words is "twenty-two billion, thirteen million, two hundred one thousand, two hundred thirty-one".