121819290701 has 4 divisors (see below), whose sum is σ = 121820966400. Its totient is φ = 121817615004.

The previous prime is 121819290689. The next prime is 121819290707. The reversal of 121819290701 is 107092918121.

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 121819290701 - 2¹⁸ = 121819028557 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 (121819290707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723611 + ... + 875928.

It is an arithmetic number, because the mean of its divisors is an integer number (30455241600).

Almost surely, 2^121819290701 is an apocalyptic number.

It is an amenable number.

121819290701 is a deficient number, since it is larger than the sum of its proper divisors (1675699).

121819290701 is an equidigital number, since it uses as much as digits as its factorization.

121819290701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675698.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 121819290701 in words is "one hundred twenty-one billion, eight hundred nineteen million, two hundred ninety thousand, seven hundred one".