22000121002100 has 72 divisors (see below), whose sum is σ = 47880963547200. Its totient is φ = 8774134329600.

The previous prime is 22000121002009. The next prime is 22000121002103. The reversal of 22000121002100 is 120012100022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000121002103) 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 23 ways as a sum of consecutive naturals, for example, 82116161 + ... + 82383639.

It is an arithmetic number, because the mean of its divisors is an integer number (665013382600).

Almost surely, 2^{22000121002100} is an apocalyptic number.

22000121002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000121002100 is an abundant number, since it is smaller than the sum of its proper divisors (25880842545100).

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

22000121002100 is a wasteful number, since it uses less digits than its factorization.

22000121002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269913 (or 269906 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22000121002100 its reverse (120012100022), we get a palindrome (22120133102122).

The spelling of 22000121002100 in words is "twenty-two trillion, one hundred twenty-one million, two thousand, one hundred".