22220120202100 has 72 divisors (see below), whose sum is σ = 50381080904448. Its totient is φ = 8490290160000.

The previous prime is 22220120202067. The next prime is 22220120202109. The reversal of 22220120202100 is 120202102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220120202109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4704739 + ... + 8159338.

It is an arithmetic number, because the mean of its divisors is an integer number (699737234784).

Almost surely, 2^{22220120202100} is an apocalyptic number.

22220120202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220120202100 is an abundant number, since it is smaller than the sum of its proper divisors (28160960702348).

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

22220120202100 is a wasteful number, since it uses less digits than its factorization.

22220120202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12864865 (or 12864858 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22220120202100 its reverse (120202102222), we get a palindrome (22340322304322).

The spelling of 22220120202100 in words is "twenty-two trillion, two hundred twenty billion, one hundred twenty million, two hundred two thousand, one hundred".