1121223331290 has 32 divisors (see below), whose sum is σ = 2692788086016. Its totient is φ = 298787100480.

The previous prime is 1121223331231. The next prime is 1121223331307. The reversal of 1121223331290 is 921333221211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12817426 + ... + 12904605.

It is an arithmetic number, because the mean of its divisors is an integer number (84149627688).

Almost surely, 2^{1121223331290} is an apocalyptic number.

1121223331290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121223331290 is an abundant number, since it is smaller than the sum of its proper divisors (1571564754726).

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

1121223331290 is a wasteful number, since it uses less digits than its factorization.

1121223331290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25723494.

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 1121223331290 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-three million, three hundred thirty-one thousand, two hundred ninety".