22101212200 has 24 divisors (see below), whose sum is σ = 51385318830. Its totient is φ = 8840484800.

The previous prime is 22101212153. The next prime is 22101212207. The reversal of 22101212200 is 221210122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14097762756 + 8003449444 = 118734^2 + 89462^2 .

It is not an unprimeable number, because it can be changed into a prime (22101212207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55252831 + ... + 55253230.

Almost surely, 2^22101212200 is an apocalyptic number.

22101212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101212200 is an abundant number, since it is smaller than the sum of its proper divisors (29284106630).

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

22101212200 is a wasteful number, since it uses less digits than its factorization.

22101212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110506077 (or 110506068 counting only the distinct ones).

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

Adding to 22101212200 its reverse (221210122), we get a palindrome (22322422322).

The spelling of 22101212200 in words is "twenty-two billion, one hundred one million, two hundred twelve thousand, two hundred".