22120202002100 has 72 divisors (see below), whose sum is σ = 48348622365120. Its totient is φ = 8783979621120.

The previous prime is 22120202002099. The next prime is 22120202002141. The reversal of 22120202002100 is 120020202122.

It is a super-2 number, since 2×22120202002100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473368937 + ... + 473415663.

It is an arithmetic number, because the mean of its divisors is an integer number (671508643960).

Almost surely, 2^{22120202002100} is an apocalyptic number.

22120202002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120202002100 is an abundant number, since it is smaller than the sum of its proper divisors (26228420363020).

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

22120202002100 is a wasteful number, since it uses less digits than its factorization.

22120202002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80937 (or 80930 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22120202002100 its reverse (120020202122), we get a palindrome (22240222204222).

The spelling of 22120202002100 in words is "twenty-two trillion, one hundred twenty billion, two hundred two million, two thousand, one hundred".