22120022220220 has 24 divisors (see below), whose sum is σ = 49184519996304. Its totient is φ = 8327537776896.

The previous prime is 22120022220193. The next prime is 22120022220223. The reversal of 22120022220220 is 2202222002122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120022220223) 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, 32529444102 + ... + 32529444781.

It is an arithmetic number, because the mean of its divisors is an integer number (2049354999846).

Almost surely, 2^{22120022220220} is an apocalyptic number.

22120022220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120022220220 is an abundant number, since it is smaller than the sum of its proper divisors (27064497776084).

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

22120022220220 is a wasteful number, since it uses less digits than its factorization.

22120022220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65058888909 (or 65058888907 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22120022220220 its reverse (2202222002122), we get a palindrome (24322244222342).

The spelling of 22120022220220 in words is "twenty-two trillion, one hundred twenty billion, twenty-two million, two hundred twenty thousand, two hundred twenty".