1121022222000 has 80 divisors (see below), whose sum is σ = 3614175663072. Its totient is φ = 298939257600.

The previous prime is 1121022221989. The next prime is 1121022222029. The reversal of 1121022222000 is 2222201211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93412519 + ... + 93424518.

Almost surely, 2^{1121022222000} is an apocalyptic number.

1121022222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121022222000 is an abundant number, since it is smaller than the sum of its proper divisors (2493153441072).

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

1121022222000 is a wasteful number, since it uses less digits than its factorization.

1121022222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186837063 (or 186837047 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1121022222000 its reverse (2222201211), we get a palindrome (1123244423211).

The spelling of 1121022222000 in words is "one trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand".