1121122111120 has 80 divisors (see below), whose sum is σ = 2891769647040. Its totient is φ = 400770905600.

The previous prime is 1121122111097. The next prime is 1121122111127. The reversal of 1121122111120 is 211112211211.

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 (16).

It is a junction number, because it is equal to n+sod(n) for n = 1121122111094 and 1121122111103.

It is not an unprimeable number, because it can be changed into a prime (1121122111127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10744711 + ... + 10848550.

It is an arithmetic number, because the mean of its divisors is an integer number (36147120588).

Almost surely, 2^{1121122111120} is an apocalyptic number.

1121122111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121122111120 is an abundant number, since it is smaller than the sum of its proper divisors (1770647535920).

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

1121122111120 is a wasteful number, since it uses less digits than its factorization.

1121122111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21593344 (or 21593338 counting only the distinct ones).

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

Adding to 1121122111120 its reverse (211112211211), we get a palindrome (1332234322331).

The spelling of 1121122111120 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty".