22222020002020 has 24 divisors (see below), whose sum is σ = 47128284008568. Its totient is φ = 8800800000000.

The previous prime is 22222020001943. The next prime is 22222020002053. The reversal of 22222020002020 is 2020002022222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6814887765156 + 15407132236864 = 2610534^2 + 3925192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22222020001985 and 22222020002003.

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, 5500497981 + ... + 5500502020.

It is an arithmetic number, because the mean of its divisors is an integer number (1963678500357).

Almost surely, 2^{22222020002020} is an apocalyptic number.

22222020002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222020002020 is an abundant number, since it is smaller than the sum of its proper divisors (24906264006548).

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

22222020002020 is a wasteful number, since it uses less digits than its factorization.

22222020002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001000111 (or 11001000109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22222020002020 its reverse (2020002022222), we get a palindrome (24242022024242).

The spelling of 22222020002020 in words is "twenty-two trillion, two hundred twenty-two billion, twenty million, two thousand, twenty".