20100222231 has 8 divisors (see below), whose sum is σ = 26801347584. Its totient is φ = 13399622520.

The previous prime is 20100222211. The next prime is 20100222251. The reversal of 20100222231 is 13222200102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20100222211) and next prime (20100222251).

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

It is not a de Polignac number, because 20100222231 - 2⁵ = 20100222199 is a prime.

It is a super-2 number, since 2×20100222231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20100222231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100222211) 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, 31285 + ... + 202926.

It is an arithmetic number, because the mean of its divisors is an integer number (3350168448).

Almost surely, 2^20100222231 is an apocalyptic number.

20100222231 is a deficient number, since it is larger than the sum of its proper divisors (6701125353).

20100222231 is a wasteful number, since it uses less digits than its factorization.

20100222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262821.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20100222231 its reverse (13222200102), we get a palindrome (33322422333).

The spelling of 20100222231 in words is "twenty billion, one hundred million, two hundred twenty-two thousand, two hundred thirty-one".