20212011212031 has 16 divisors (see below), whose sum is σ = 29943984030720. Its totient is φ = 13474555468920.

The previous prime is 20212011211981. The next prime is 20212011212047. The reversal of 20212011212031 is 13021211021202.

It is not a de Polignac number, because 20212011212031 - 2²⁶ = 20211944103167 is a prime.

It is a super-2 number, since 2×20212011212031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212011211995 and 20212011212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011212231) 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, 118255 + ... + 6359088.

It is an arithmetic number, because the mean of its divisors is an integer number (1871499001920).

Almost surely, 2^{20212011212031} is an apocalyptic number.

20212011212031 is a deficient number, since it is larger than the sum of its proper divisors (9731972818689).

20212011212031 is a wasteful number, since it uses less digits than its factorization.

20212011212031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592923 (or 6592917 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 20212011212031 its reverse (13021211021202), we get a palindrome (33233222233233).

The spelling of 20212011212031 in words is "twenty trillion, two hundred twelve billion, eleven million, two hundred twelve thousand, thirty-one".