1121221112010 has 32 divisors (see below), whose sum is σ = 2691203659200. Its totient is φ = 298961964288.

The previous prime is 1121221111981. The next prime is 1121221112057. The reversal of 1121221112010 is 102111221211.

It is a happy number.

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

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, 1594335 + ... + 2187314.

It is an arithmetic number, because the mean of its divisors is an integer number (84100114350).

Almost surely, 2^{1121221112010} is an apocalyptic number.

1121221112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121221112010 is an abundant number, since it is smaller than the sum of its proper divisors (1569982547190).

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

1121221112010 is a wasteful number, since it uses less digits than its factorization.

1121221112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791542.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1121221112010 its reverse (102111221211), we get a palindrome (1223332333221).

The spelling of 1121221112010 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred twelve thousand, ten".