22211022002100 has 72 divisors (see below), whose sum is σ = 64282041915168. Its totient is φ = 5921266243200.

The previous prime is 22211022002087. The next prime is 22211022002107. The reversal of 22211022002100 is 120022011222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22211022002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211022002107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9391914 + ... + 11516513.

Almost surely, 2^{22211022002100} is an apocalyptic number.

22211022002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211022002100 is an abundant number, since it is smaller than the sum of its proper divisors (42071019913068).

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

22211022002100 is a wasteful number, since it uses less digits than its factorization.

22211022002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20911985 (or 20911978 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22211022002100 its reverse (120022011222), we get a palindrome (22331044013322).

The spelling of 22211022002100 in words is "twenty-two trillion, two hundred eleven billion, twenty-two million, two thousand, one hundred".