22021122121100 has 36 divisors (see below), whose sum is σ = 49327313558208. Its totient is φ = 8524305336000.

The previous prime is 22021122121081. The next prime is 22021122121127. The reversal of 22021122121100 is 112122112022.

It is an unprimeable number.

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, 3551790791 + ... + 3551796990.

Almost surely, 2^{22021122121100} is an apocalyptic number.

22021122121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021122121100 is an abundant number, since it is smaller than the sum of its proper divisors (27306191437108).

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

22021122121100 is a wasteful number, since it uses less digits than its factorization.

22021122121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7103587826 (or 7103587819 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22021122121100 its reverse (112122112022), we get a palindrome (22133244233122).

The spelling of 22021122121100 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred".