22122202420 has 24 divisors (see below), whose sum is σ = 46461290400. Its totient is φ = 8847992352.

The previous prime is 22122202373. The next prime is 22122202451. The reversal of 22122202420 is 2420222122.

It is a super-2 number, since 2×22122202420² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 171171 + ... + 271189.

It is an arithmetic number, because the mean of its divisors is an integer number (1935887100).

Almost surely, 2^22122202420 is an apocalyptic number.

22122202420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122202420 is an abundant number, since it is smaller than the sum of its proper divisors (24339087980).

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

22122202420 is a wasteful number, since it uses less digits than its factorization.

22122202420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111087 (or 111085 counting only the distinct ones).

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

Adding to 22122202420 its reverse (2420222122), we get a palindrome (24542424542).

The spelling of 22122202420 in words is "twenty-two billion, one hundred twenty-two million, two hundred two thousand, four hundred twenty".