22012020031 has 2 divisors, whose sum is σ = 22012020032. Its totient is φ = 22012020030.

The previous prime is 22012020029. The next prime is 22012020061. The reversal of 22012020031 is 13002021022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22012020031 - 2¹ = 22012020029 is a prime.

It is a super-2 number, since 2×22012020031² (a number of 21 digits) contains 22 as substring.

Together with 22012020029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22012019993 and 22012020020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22012020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006010015 + 11006010016.

It is an arithmetic number, because the mean of its divisors is an integer number (11006010016).

Almost surely, 2^22012020031 is an apocalyptic number.

22012020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012020031 is an equidigital number, since it uses as much as digits as its factorization.

22012020031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22012020031 its reverse (13002021022), we get a palindrome (35014041053).

Subtracting from 22012020031 its reverse (13002021022), we obtain a palindrome (9009999009).

The spelling of 22012020031 in words is "twenty-two billion, twelve million, twenty thousand, thirty-one".