11222222121120 has 48 divisors (see below), whose sum is σ = 35349999683040. Its totient is φ = 2992592565504.

The previous prime is 11222222121083. The next prime is 11222222121167. The reversal of 11222222121120 is 2112122222211.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11689814230 + ... + 11689815189.

It is an arithmetic number, because the mean of its divisors is an integer number (736458326730).

Almost surely, 2^{11222222121120} is an apocalyptic number.

11222222121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222222121120 is an abundant number, since it is smaller than the sum of its proper divisors (24127777561920).

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

11222222121120 is a wasteful number, since it uses less digits than its factorization.

11222222121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23379629437 (or 23379629429 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11222222121120 its reverse (2112122222211), we get a palindrome (13334344343331).

The spelling of 11222222121120 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty".