121220111220995 has 8 divisors (see below), whose sum is σ = 145464355512960. Its totient is φ = 96975940944960.

The previous prime is 121220111220983. The next prime is 121220111221007. The reversal of 121220111220995 is 599022111022121.

It is an interprime number because it is at equal distance from previous prime (121220111220983) and next prime (121220111221007).

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

It is not a de Polignac number, because 121220111220995 - 2¹⁸ = 121220110958851 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14834771 + ... + 21506060.

It is an arithmetic number, because the mean of its divisors is an integer number (18183044439120).

Almost surely, 2^{121220111220995} is an apocalyptic number.

121220111220995 is a deficient number, since it is larger than the sum of its proper divisors (24244244291965).

121220111220995 is an equidigital number, since it uses as much as digits as its factorization.

121220111220995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37007965.

The product of its (nonzero) digits is 12960, while the sum is 38.

The spelling of 121220111220995 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty thousand, nine hundred ninety-five".