20212110331 has 16 divisors (see below), whose sum is σ = 23487885568. Its totient is φ = 17033652000.

The previous prime is 20212110323. The next prime is 20212110383. The reversal of 20212110331 is 13301121202.

It is a cyclic number.

It is not a de Polignac number, because 20212110331 - 2³ = 20212110323 is a prime.

It is a super-2 number, since 2×20212110331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20212111331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209076 + ... + 1225678.

It is an arithmetic number, because the mean of its divisors is an integer number (1467992848).

Almost surely, 2^20212110331 is an apocalyptic number.

20212110331 is a deficient number, since it is larger than the sum of its proper divisors (3275775237).

20212110331 is a wasteful number, since it uses less digits than its factorization.

20212110331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19522.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20212110331 its reverse (13301121202), we get a palindrome (33513231533).

The spelling of 20212110331 in words is "twenty billion, two hundred twelve million, one hundred ten thousand, three hundred thirty-one".