1122000121000 has 128 divisors (see below), whose sum is σ = 2925101237760. Its totient is φ = 399319008000.

The previous prime is 1122000120991. The next prime is 1122000121007. The reversal of 1122000121000 is 1210002211.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1122000121007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 568107 + ... + 1602106.

It is an arithmetic number, because the mean of its divisors is an integer number (22852353420).

Almost surely, 2^{1122000121000} is an apocalyptic number.

1122000121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122000121000 is an abundant number, since it is smaller than the sum of its proper divisors (1803101116760).

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

1122000121000 is a wasteful number, since it uses less digits than its factorization.

1122000121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170292 (or 2170278 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1122000121000 its reverse (1210002211), we get a palindrome (1123210123211).

The spelling of 1122000121000 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one thousand".