2112400222002 has 48 divisors (see below), whose sum is σ = 5265810763200. Its totient is φ = 599492291616.

The previous prime is 2112400222001. The next prime is 2112400222027. The reversal of 2112400222002 is 2002220042112.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2112400222001) 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, 56239888 + ... + 56277435.

It is an arithmetic number, because the mean of its divisors is an integer number (109704390900).

Almost surely, 2^{2112400222002} is an apocalyptic number.

2112400222002 is an abundant number, since it is smaller than the sum of its proper divisors (3153410541198).

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

2112400222002 is a wasteful number, since it uses less digits than its factorization.

2112400222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112517487 (or 112517484 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2112400222002 its reverse (2002220042112), we get a palindrome (4114620264114).

The spelling of 2112400222002 in words is "two trillion, one hundred twelve billion, four hundred million, two hundred twenty-two thousand, two".