22211122020 has 24 divisors (see below), whose sum is σ = 62191141824. Its totient is φ = 5922965856.

The previous prime is 22211122019. The next prime is 22211122033. The reversal of 22211122020 is 2022111222.

It is a super-3 number, since 3×22211122020³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185092624 + ... + 185092743.

It is an arithmetic number, because the mean of its divisors is an integer number (2591297576).

Almost surely, 2^22211122020 is an apocalyptic number.

22211122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211122020 is an abundant number, since it is smaller than the sum of its proper divisors (39980019804).

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

22211122020 is a wasteful number, since it uses less digits than its factorization.

22211122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370185379 (or 370185377 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22211122020 its reverse (2022111222), we get a palindrome (24233233242).

The spelling of 22211122020 in words is "twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, twenty".