1121020120110 has 128 divisors (see below), whose sum is σ = 2981858116608. Its totient is φ = 267459200000.

The previous prime is 1121020120097. The next prime is 1121020120133. The reversal of 1121020120110 is 110210201211.

It is a super-2 number, since 2×1121020120110² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5465410 + ... + 5666810.

It is an arithmetic number, because the mean of its divisors is an integer number (23295766536).

Almost surely, 2^{1121020120110} is an apocalyptic number.

1121020120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121020120110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490929058304).

1121020120110 is an abundant number, since it is smaller than the sum of its proper divisors (1860837996498).

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

1121020120110 is a wasteful number, since it uses less digits than its factorization.

1121020120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201690.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121020120110 its reverse (110210201211), we get a palindrome (1231230321321).

It can be divided in two parts, 11210201201 and 10, that added together give a palindrome (11210201211).

The spelling of 1121020120110 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred twenty thousand, one hundred ten".