121612699 has 4 divisors (see below), whose sum is σ = 130967536. Its totient is φ = 112257864.

The previous prime is 121612693. The next prime is 121612703. The reversal of 121612699 is 996216121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996216121 = 59 ⋅16885019.

It is a cyclic number.

It is not a de Polignac number, because 121612699 - 2³ = 121612691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121612691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677399 + ... + 4677424.

It is an arithmetic number, because the mean of its divisors is an integer number (32741884).

Almost surely, 2^121612699 is an apocalyptic number.

121612699 is a deficient number, since it is larger than the sum of its proper divisors (9354837).

121612699 is an equidigital number, since it uses as much as digits as its factorization.

121612699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354836.

The product of its digits is 11664, while the sum is 37.

The square root of 121612699 is about 11027.8147880711. The cubic root of 121612699 is about 495.4421774173.

The spelling of 121612699 in words is "one hundred twenty-one million, six hundred twelve thousand, six hundred ninety-nine".