222012112221200 has 120 divisors (see below), whose sum is σ = 609640969766400. Its totient is φ = 76111053465600.

The previous prime is 222012112221091. The next prime is 222012112221203. The reversal of 222012112221200 is 2122211210222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (222012112221203) 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, 25057601 + ... + 32739999.

It is an arithmetic number, because the mean of its divisors is an integer number (5080341414720).

Almost surely, 2^{222012112221200} is an apocalyptic number.

222012112221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012112221200 is an abundant number, since it is smaller than the sum of its proper divisors (387628857545200).

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

222012112221200 is a wasteful number, since it uses less digits than its factorization.

222012112221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692745 (or 7692734 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222012112221200 its reverse (2122211210222), we get a palindrome (224134323431422).

The spelling of 222012112221200 in words is "two hundred twenty-two trillion, twelve billion, one hundred twelve million, two hundred twenty-one thousand, two hundred".