22200221020 has 12 divisors (see below), whose sum is σ = 46620464184. Its totient is φ = 8880088400.

The previous prime is 22200221011. The next prime is 22200221039. The reversal of 22200221020 is 2012200222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555005506 + ... + 555005545.

It is an arithmetic number, because the mean of its divisors is an integer number (3885038682).

Almost surely, 2^22200221020 is an apocalyptic number.

22200221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22200221020 is an abundant number, since it is smaller than the sum of its proper divisors (24420243164).

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

22200221020 is a wasteful number, since it uses less digits than its factorization.

22200221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110011060 (or 1110011058 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22200221020 its reverse (2012200222), we get a palindrome (24212421242).

The spelling of 22200221020 in words is "twenty-two billion, two hundred million, two hundred twenty-one thousand, twenty".