121220012095 has 16 divisors (see below), whose sum is σ = 179032633920. Its totient is φ = 76728271104.

The previous prime is 121220012077. The next prime is 121220012113. The reversal of 121220012095 is 590210022121.

It is an interprime number because it is at equal distance from previous prime (121220012077) and next prime (121220012113).

It is a cyclic number.

It is not a de Polignac number, because 121220012095 - 2¹³ = 121220003903 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133208350 + ... + 133209259.

It is an arithmetic number, because the mean of its divisors is an integer number (11189539620).

Almost surely, 2^121220012095 is an apocalyptic number.

121220012095 is a deficient number, since it is larger than the sum of its proper divisors (57812621825).

121220012095 is a wasteful number, since it uses less digits than its factorization.

121220012095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266417634.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 121220012095 in words is "one hundred twenty-one billion, two hundred twenty million, twelve thousand, ninety-five".