22202072220 has 24 divisors (see below), whose sum is σ = 62165802384. Its totient is φ = 5920552576.

The previous prime is 22202072209. The next prime is 22202072227. The reversal of 22202072220 is 2227020222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202072227) 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, 185017209 + ... + 185017328.

It is an arithmetic number, because the mean of its divisors is an integer number (2590241766).

Almost surely, 2^22202072220 is an apocalyptic number.

22202072220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202072220 is an abundant number, since it is smaller than the sum of its proper divisors (39963730164).

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

22202072220 is a wasteful number, since it uses less digits than its factorization.

22202072220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370034549 (or 370034547 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

Adding to 22202072220 its reverse (2227020222), we get a palindrome (24429092442).

The spelling of 22202072220 in words is "twenty-two billion, two hundred two million, seventy-two thousand, two hundred twenty".