22011022121100 has 36 divisors (see below), whose sum is σ = 63685224004584. Its totient is φ = 5869605898880.

The previous prime is 22011022121089. The next prime is 22011022121107. The reversal of 22011022121100 is 112122011022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22011022121100.

It is not an unprimeable number, because it can be changed into a prime (22011022121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36685036569 + ... + 36685037168.

Almost surely, 2^{22011022121100} is an apocalyptic number.

22011022121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011022121100 is an abundant number, since it is smaller than the sum of its proper divisors (41674201883484).

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

22011022121100 is a wasteful number, since it uses less digits than its factorization.

22011022121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73370073754 (or 73370073747 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22011022121100 its reverse (112122011022), we get a palindrome (22123144132122).

The spelling of 22011022121100 in words is "twenty-two trillion, eleven billion, twenty-two million, one hundred twenty-one thousand, one hundred".