22212100244040 has 128 divisors (see below), whose sum is σ = 76895148994560. Its totient is φ = 5027759702784.

The previous prime is 22212100244029. The next prime is 22212100244069. The reversal of 22212100244040 is 4044200121222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 22212100244040.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128277444 + ... + 128450483.

It is an arithmetic number, because the mean of its divisors is an integer number (600743351520).

Almost surely, 2^{22212100244040} is an apocalyptic number.

22212100244040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212100244040 is an abundant number, since it is smaller than the sum of its proper divisors (54683048750520).

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

22212100244040 is a wasteful number, since it uses less digits than its factorization.

22212100244040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256728051 (or 256728047 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 22212100244040 its reverse (4044200121222), we get a palindrome (26256300365262).

The spelling of 22212100244040 in words is "twenty-two trillion, two hundred twelve billion, one hundred million, two hundred forty-four thousand, forty".