20212210231 has 8 divisors (see below), whose sum is σ = 21403710864. Its totient is φ = 19020992640.

The previous prime is 20212210229. The next prime is 20212210259. The reversal of 20212210231 is 13201221202.

It is a happy number.

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

It is not a de Polignac number, because 20212210231 - 2¹ = 20212210229 is a prime.

It is a super-2 number, since 2×20212210231² (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 (20212210201) 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, 86241 + ... + 218773.

It is an arithmetic number, because the mean of its divisors is an integer number (2675463858).

Almost surely, 2^20212210231 is an apocalyptic number.

20212210231 is a deficient number, since it is larger than the sum of its proper divisors (1191500633).

20212210231 is a wasteful number, since it uses less digits than its factorization.

20212210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141521.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20212210231 its reverse (13201221202), we get a palindrome (33413431433).

The spelling of 20212210231 in words is "twenty billion, two hundred twelve million, two hundred ten thousand, two hundred thirty-one".