122102993 has 4 divisors (see below), whose sum is σ = 129285540. Its totient is φ = 114920448.

The previous prime is 122102989. The next prime is 122103019. The reversal of 122102993 is 399201221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106357969 + 15745024 = 10313^2 + 3968^2 .

It is a cyclic number.

It is not a de Polignac number, because 122102993 - 2² = 122102989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122102593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3591248 + ... + 3591281.

It is an arithmetic number, because the mean of its divisors is an integer number (32321385).

Almost surely, 2^122102993 is an apocalyptic number.

It is an amenable number.

122102993 is a deficient number, since it is larger than the sum of its proper divisors (7182547).

122102993 is an equidigital number, since it uses as much as digits as its factorization.

122102993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182546.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 122102993 is about 11050.0223076698. The cubic root of 122102993 is about 496.1070932148.

The spelling of 122102993 in words is "one hundred twenty-two million, one hundred two thousand, nine hundred ninety-three".