22122002040 has 64 divisors (see below), whose sum is σ = 66430748160. Its totient is φ = 5893445760.

The previous prime is 22122002027. The next prime is 22122002093. The reversal of 22122002040 is 4020022122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34317 + ... + 213123.

It is an arithmetic number, because the mean of its divisors is an integer number (1037980440).

Almost surely, 2^22122002040 is an apocalyptic number.

22122002040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122002040 is an abundant number, since it is smaller than the sum of its proper divisors (44308746120).

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

22122002040 is a wasteful number, since it uses less digits than its factorization.

22122002040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179852 (or 179848 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22122002040 its reverse (4020022122), we get a palindrome (26142024162).

The spelling of 22122002040 in words is "twenty-two billion, one hundred twenty-two million, two thousand, forty".