20212213231 has 8 divisors (see below), whose sum is σ = 23107696640. Its totient is φ = 17318735928.

The previous prime is 20212213207. The next prime is 20212213261. The reversal of 20212213231 is 13231221202.

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 20212213231 - 2¹⁵ = 20212180463 is a prime.

It is a super-2 number, since 2×20212213231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212213199 and 20212213208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212213261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479871 + ... + 520288.

It is an arithmetic number, because the mean of its divisors is an integer number (2888462080).

Almost surely, 2^20212213231 is an apocalyptic number.

20212213231 is a deficient number, since it is larger than the sum of its proper divisors (2895483409).

20212213231 is a wasteful number, since it uses less digits than its factorization.

20212213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003053.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20212213231 its reverse (13231221202), we get a palindrome (33443434433).

The spelling of 20212213231 in words is "twenty billion, two hundred twelve million, two hundred thirteen thousand, two hundred thirty-one".