22002111212200 has 72 divisors (see below), whose sum is σ = 59506730401950. Its totient is φ = 7543580983680.

The previous prime is 22002111212167. The next prime is 22002111212209. The reversal of 22002111212200 is 221211120022.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14452816442596 + 7549294769604 = 3801686^2 + 2747598^2 .

It is not an unprimeable number, because it can be changed into a prime (22002111212209) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1122546895 + ... + 1122566494.

Almost surely, 2^{22002111212200} is an apocalyptic number.

22002111212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002111212200 is an abundant number, since it is smaller than the sum of its proper divisors (37504619189750).

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

22002111212200 is a wasteful number, since it uses less digits than its factorization.

22002111212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245113419 (or 2245113403 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22002111212200 its reverse (221211120022), we get a palindrome (22223322332222).

The spelling of 22002111212200 in words is "twenty-two trillion, two billion, one hundred eleven million, two hundred twelve thousand, two hundred".