22211020100 has 36 divisors (see below), whose sum is σ = 48624468564. Its totient is φ = 8805780480.

The previous prime is 22211020061. The next prime is 22211020109. The reversal of 22211020100 is 102011222.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5376995584 + 16834024516 = 73328^2 + 129746^2 .

It is not an unprimeable number, because it can be changed into a prime (22211020109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 971489 + ... + 994088.

Almost surely, 2^22211020100 is an apocalyptic number.

22211020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211020100 is an abundant number, since it is smaller than the sum of its proper divisors (26413448464).

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

22211020100 is a wasteful number, since it uses less digits than its factorization.

22211020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965704 (or 1965697 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22211020100 its reverse (102011222), we get a palindrome (22313031322).

The spelling of 22211020100 in words is "twenty-two billion, two hundred eleven million, twenty thousand, one hundred".