22135720122 has 64 divisors (see below), whose sum is σ = 52716591360. Its totient is φ = 6867001152.

The previous prime is 22135720121. The next prime is 22135720129. The reversal of 22135720122 is 22102753122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22135720121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194893 + ... + 286800.

It is an arithmetic number, because the mean of its divisors is an integer number (823696740).

Almost surely, 2^22135720122 is an apocalyptic number.

22135720122 is an abundant number, since it is smaller than the sum of its proper divisors (30580871238).

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

22135720122 is a wasteful number, since it uses less digits than its factorization.

22135720122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481764 (or 481758 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 22135720122 in words is "twenty-two billion, one hundred thirty-five million, seven hundred twenty thousand, one hundred twenty-two".