1122200022144 has 32 divisors (see below), whose sum is σ = 2980843809840. Its totient is φ = 374066673920.

The previous prime is 1122200022143. The next prime is 1122200022211. The reversal of 1122200022144 is 4412200022211.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1122200022144.

It is not an unprimeable number, because it can be changed into a prime (1122200022143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1461197562 + ... + 1461198329.

Almost surely, 2^{1122200022144} is an apocalyptic number.

It is an amenable number.

1122200022144 is an abundant number, since it is smaller than the sum of its proper divisors (1858643787696).

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

1122200022144 is an equidigital number, since it uses as much as digits as its factorization.

1122200022144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922395908 (or 2922395896 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 1122200022144 its reverse (4412200022211), we get a palindrome (5534400044355).

The spelling of 1122200022144 in words is "one trillion, one hundred twenty-two billion, two hundred million, twenty-two thousand, one hundred forty-four".