22202121022100 has 18 divisors (see below), whose sum is σ = 48178602618174. Its totient is φ = 8880848408800.

The previous prime is 22202121022093. The next prime is 22202121022129. The reversal of 22202121022100 is 122012120222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5896903149316 + 16305217872784 = 2428354^2 + 4037972^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 111010605011 + ... + 111010605210.

It is an arithmetic number, because the mean of its divisors is an integer number (2676589034343).

Almost surely, 2^{22202121022100} is an apocalyptic number.

22202121022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202121022100 is an abundant number, since it is smaller than the sum of its proper divisors (25976481596074).

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

22202121022100 is a wasteful number, since it uses less digits than its factorization.

22202121022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222021210235 (or 222021210228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22202121022100 its reverse (122012120222), we get a palindrome (22324133142322).

The spelling of 22202121022100 in words is "twenty-two trillion, two hundred two billion, one hundred twenty-one million, twenty-two thousand, one hundred".