11211112112120 has 32 divisors (see below), whose sum is σ = 25255652389920. Its totient is φ = 4478995931520.

The previous prime is 11211112112117. The next prime is 11211112112171. The reversal of 11211112112120 is 2121121111211.

It is a congruent number.

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, 170245211 + ... + 170311050.

It is an arithmetic number, because the mean of its divisors is an integer number (789239137185).

Almost surely, 2^{11211112112120} is an apocalyptic number.

11211112112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211112112120 is an abundant number, since it is smaller than the sum of its proper divisors (14044540277800).

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

11211112112120 is a wasteful number, since it uses less digits than its factorization.

11211112112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340557095 (or 340557091 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 11211112112120 its reverse (2121121111211), we get a palindrome (13332233223331).

The spelling of 11211112112120 in words is "eleven trillion, two hundred eleven billion, one hundred twelve million, one hundred twelve thousand, one hundred twenty".