121224190 has 8 divisors (see below), whose sum is σ = 218203560. Its totient is φ = 48489672.

The previous prime is 121224133. The next prime is 121224217. The reversal of 121224190 is 91422121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121224190² = 29390608482312200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061200 + ... + 6061219.

It is an arithmetic number, because the mean of its divisors is an integer number (27275445).

Almost surely, 2^121224190 is an apocalyptic number.

121224190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121224190 is a deficient number, since it is larger than the sum of its proper divisors (96979370).

121224190 is a wasteful number, since it uses less digits than its factorization.

121224190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122426.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 121224190 is about 11010.1857386694. The cubic root of 121224190 is about 494.9140278539.

The spelling of 121224190 in words is "one hundred twenty-one million, two hundred twenty-four thousand, one hundred ninety".