22202021100100 has 144 divisors (see below), whose sum is σ = 49134515189760. Its totient is φ = 8706660393600.

The previous prime is 22202021100089. The next prime is 22202021100107. The reversal of 22202021100100 is 100112020222.

It is a happy number.

It is a super-2 number, since 2×22202021100100² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22202021100107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 514402321 + ... + 514445479.

It is an arithmetic number, because the mean of its divisors is an integer number (341211911040).

Almost surely, 2^{22202021100100} is an apocalyptic number.

22202021100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22202021100100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24567257594880).

22202021100100 is an abundant number, since it is smaller than the sum of its proper divisors (26932494089660).

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

22202021100100 is a wasteful number, since it uses less digits than its factorization.

22202021100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43778 (or 43771 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22202021100100 its reverse (100112020222), we get a palindrome (22302133120322).

The spelling of 22202021100100 in words is "twenty-two trillion, two hundred two billion, twenty-one million, one hundred thousand, one hundred".