22053121040 has 80 divisors (see below), whose sum is σ = 52677003456. Its totient is φ = 8581440000.

The previous prime is 22053121007. The next prime is 22053121127. The reversal of 22053121040 is 4012135022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 850670 + ... + 876210.

Almost surely, 2^22053121040 is an apocalyptic number.

22053121040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22053121040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26338501728).

22053121040 is an abundant number, since it is smaller than the sum of its proper divisors (30623882416).

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

22053121040 is a wasteful number, since it uses less digits than its factorization.

22053121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25848 (or 25842 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 22053121040 its reverse (4012135022), we get a palindrome (26065256062).

The spelling of 22053121040 in words is "twenty-two billion, fifty-three million, one hundred twenty-one thousand, forty".