1121320222000 has 80 divisors (see below), whose sum is σ = 2957838927264. Its totient is φ = 407752800000.

The previous prime is 1121320221971. The next prime is 1121320222031. The reversal of 1121320222000 is 2220231211.

It is a happy number.

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

It is a super-2 number, since 2×1121320222000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 25462551 + ... + 25506550.

Almost surely, 2^{1121320222000} is an apocalyptic number.

1121320222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121320222000 is an abundant number, since it is smaller than the sum of its proper divisors (1836518705264).

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

1121320222000 is a wasteful number, since it uses less digits than its factorization.

1121320222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50969135 (or 50969119 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1121320222000 its reverse (2220231211), we get a palindrome (1123540453211).

The spelling of 1121320222000 in words is "one trillion, one hundred twenty-one billion, three hundred twenty million, two hundred twenty-two thousand".