22201121002100 has 72 divisors (see below), whose sum is σ = 48857691657600. Its totient is φ = 8754884611200.

The previous prime is 22201121002091. The next prime is 22201121002103. The reversal of 22201121002100 is 120012110222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201121002103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144472106 + ... + 144625694.

It is an arithmetic number, because the mean of its divisors is an integer number (678579050800).

Almost surely, 2^{22201121002100} is an apocalyptic number.

22201121002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201121002100 is an abundant number, since it is smaller than the sum of its proper divisors (26656570655500).

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

22201121002100 is a wasteful number, since it uses less digits than its factorization.

22201121002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174033 (or 174026 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22201121002100 its reverse (120012110222), we get a palindrome (22321133112322).

The spelling of 22201121002100 in words is "twenty-two trillion, two hundred one billion, one hundred twenty-one million, two thousand, one hundred".