22001020220 has 24 divisors (see below), whose sum is σ = 48919916304. Its totient is φ = 8282736896.

The previous prime is 22001020213. The next prime is 22001020229. The reversal of 22001020220 is 2202010022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001020229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32354102 + ... + 32354781.

It is an arithmetic number, because the mean of its divisors is an integer number (2038329846).

Almost surely, 2^22001020220 is an apocalyptic number.

22001020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001020220 is an abundant number, since it is smaller than the sum of its proper divisors (26918896084).

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

22001020220 is a wasteful number, since it uses less digits than its factorization.

22001020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64708909 (or 64708907 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 22001020220 its reverse (2202010022), we get a palindrome (24203030242).

The spelling of 22001020220 in words is "twenty-two billion, one million, twenty thousand, two hundred twenty".