121099061 has 4 divisors (see below), whose sum is σ = 121160832. Its totient is φ = 121037292.

The previous prime is 121099037. The next prime is 121099067. The reversal of 121099061 is 160990121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121099061 - 2⁶ = 121098997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121099067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27845 + ... + 31898.

It is an arithmetic number, because the mean of its divisors is an integer number (30290208).

Almost surely, 2^121099061 is an apocalyptic number.

It is an amenable number.

121099061 is a deficient number, since it is larger than the sum of its proper divisors (61771).

121099061 is an equidigital number, since it uses as much as digits as its factorization.

121099061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61770.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 121099061 is about 11004.5018515151. The cubic root of 121099061 is about 494.7436839172.

The spelling of 121099061 in words is "one hundred twenty-one million, ninety-nine thousand, sixty-one".