121111092 has 48 divisors (see below), whose sum is σ = 330523200. Its totient is φ = 38244960.

The previous prime is 121111051. The next prime is 121111093. The reversal of 121111092 is 290111121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111093) 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, 27459 + ... + 31562.

It is an arithmetic number, because the mean of its divisors is an integer number (6885900).

Almost surely, 2^121111092 is an apocalyptic number.

121111092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121111092 is an abundant number, since it is smaller than the sum of its proper divisors (209412108).

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

121111092 is a wasteful number, since it uses less digits than its factorization.

121111092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59053 (or 59045 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The square root of 121111092 is about 11005.0484778578. The cubic root of 121111092 is about 494.7600673752.

It can be divided in two parts, 12111 and 1092, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 121111092 in words is "one hundred twenty-one million, one hundred eleven thousand, ninety-two".