22222131102020 has 48 divisors (see below), whose sum is σ = 47132508452400. Its totient is φ = 8800099123200.

The previous prime is 22222131102019. The next prime is 22222131102049. The reversal of 22222131102020 is 2020113122222.

It can be written as a sum of positive squares in 8 ways, for example, as 245555927296 + 21976575174724 = 495536^2 + 4687918^2 .

It is a super-2 number, since 2×22222131102020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22222131101983 and 22222131102001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23717816 + ... + 24636944.

It is an arithmetic number, because the mean of its divisors is an integer number (981927259425).

Almost surely, 2^{22222131102020} is an apocalyptic number.

22222131102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222131102020 is an abundant number, since it is smaller than the sum of its proper divisors (24910377350380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22222131102020 is a wasteful number, since it uses less digits than its factorization.

22222131102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931208 (or 931206 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22222131102020 its reverse (2020113122222), we get a palindrome (24242244224242).

It can be divided in two parts, 2222213 and 1102020, that added together give a palindrome (3324233).

The spelling of 22222131102020 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred thirty-one million, one hundred two thousand, twenty".