22120002001200 has 120 divisors (see below), whose sum is σ = 71915318210368. Its totient is φ = 5810627370240.

The previous prime is 22120002001193. The next prime is 22120002001241. The reversal of 22120002001200 is 210020002122.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137481802 + ... + 137642601.

Almost surely, 2^{22120002001200} is an apocalyptic number.

22120002001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120002001200 is an abundant number, since it is smaller than the sum of its proper divisors (49795316209168).

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

22120002001200 is a wasteful number, since it uses less digits than its factorization.

22120002001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275124491 (or 275124480 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22120002001200 its reverse (210020002122), we get a palindrome (22330022003322).

The spelling of 22120002001200 in words is "twenty-two trillion, one hundred twenty billion, two million, one thousand, two hundred".