22011273100 has 18 divisors (see below), whose sum is σ = 47764462844. Its totient is φ = 8804509200.

The previous prime is 22011273091. The next prime is 22011273149. The reversal of 22011273100 is 137211022.

It is a super-2 number, since 2×22011273100² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110056266 + ... + 110056465.

Almost surely, 2^22011273100 is an apocalyptic number.

22011273100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011273100 is an abundant number, since it is smaller than the sum of its proper divisors (25753189744).

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

22011273100 is a wasteful number, since it uses less digits than its factorization.

22011273100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220112745 (or 220112738 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 22011273100 its reverse (137211022), we get a palindrome (22148484122).

The spelling of 22011273100 in words is "twenty-two billion, eleven million, two hundred seventy-three thousand, one hundred".