121291119 has 12 divisors (see below), whose sum is σ = 178071192. Its totient is φ = 79534800.

The previous prime is 121291103. The next prime is 121291123. The reversal of 121291119 is 911192121.

It is not a de Polignac number, because 121291119 - 2⁴ = 121291103 is a prime.

It is a super-2 number, since 2×121291119² = 29423071096544322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 121291092 and 121291101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121291139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109917 + ... + 111014.

It is an arithmetic number, because the mean of its divisors is an integer number (14839266).

Almost surely, 2^121291119 is an apocalyptic number.

121291119 is a deficient number, since it is larger than the sum of its proper divisors (56780073).

121291119 is a wasteful number, since it uses less digits than its factorization.

121291119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220998 (or 220995 counting only the distinct ones).

The product of its digits is 324, while the sum is 27.

The square root of 121291119 is about 11013.2247321118. The cubic root of 121291119 is about 495.0050933054.

The spelling of 121291119 in words is "one hundred twenty-one million, two hundred ninety-one thousand, one hundred nineteen".