22122221101000 has 64 divisors (see below), whose sum is σ = 51919606468080. Its totient is φ = 8822630476800.

The previous prime is 22122221100929. The next prime is 22122221101007. The reversal of 22122221101000 is 10112222122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 134355970116 + 21987865130884 = 366546^2 + 4689122^2 .

It is not an unprimeable number, because it can be changed into a prime (22122221101007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32485287 + ... + 33159286.

Almost surely, 2^{22122221101000} is an apocalyptic number.

22122221101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122221101000 is an abundant number, since it is smaller than the sum of its proper divisors (29797385367080).

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

22122221101000 is a wasteful number, since it uses less digits than its factorization.

22122221101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65644931 (or 65644917 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22122221101000 its reverse (10112222122), we get a palindrome (22132333323122).

The spelling of 22122221101000 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand".