20222100031 has 6 divisors (see below), whose sum is σ = 23523667440. Its totient is φ = 17333228556.

The previous prime is 20222100029. The next prime is 20222100053. The reversal of 20222100031 is 13000122202.

It is not a de Polignac number, because 20222100031 - 2¹ = 20222100029 is a prime.

It is a super-2 number, since 2×20222100031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20222099984 and 20222100020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222100001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206347911 + ... + 206348008.

It is an arithmetic number, because the mean of its divisors is an integer number (3920611240).

Almost surely, 2^20222100031 is an apocalyptic number.

20222100031 is a deficient number, since it is larger than the sum of its proper divisors (3301567409).

20222100031 is an equidigital number, since it uses as much as digits as its factorization.

20222100031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412695933 (or 412695926 counting only the distinct ones).

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

Adding to 20222100031 its reverse (13000122202), we get a palindrome (33222222233).

The spelling of 20222100031 in words is "twenty billion, two hundred twenty-two million, one hundred thousand, thirty-one".