1121222121110 has 128 divisors (see below), whose sum is σ = 2533678334208. Its totient is φ = 347784192000.

The previous prime is 1121222121109. The next prime is 1121222121167. The reversal of 1121222121110 is 111212221211.

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, 15562370 + ... + 15634250.

It is an arithmetic number, because the mean of its divisors is an integer number (19794361986).

Almost surely, 2^{1121222121110} is an apocalyptic number.

1121222121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121222121110 is an abundant number, since it is smaller than the sum of its proper divisors (1412456213098).

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

1121222121110 is a wasteful number, since it uses less digits than its factorization.

1121222121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72250.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121222121110 its reverse (111212221211), we get a palindrome (1232434342321).

The spelling of 1121222121110 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred ten".