121022020195 has 8 divisors (see below), whose sum is σ = 151540616736. Its totient is φ = 92608154496.

The previous prime is 121022020181. The next prime is 121022020199. The reversal of 121022020195 is 591020220121.

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

It is a cyclic number.

It is not a de Polignac number, because 121022020195 - 2¹³ = 121022012003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022020199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526182582 + ... + 526182811.

It is an arithmetic number, because the mean of its divisors is an integer number (18942577092).

Almost surely, 2^121022020195 is an apocalyptic number.

121022020195 is a deficient number, since it is larger than the sum of its proper divisors (30518596541).

121022020195 is a wasteful number, since it uses less digits than its factorization.

121022020195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052365421.

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

The spelling of 121022020195 in words is "one hundred twenty-one billion, twenty-two million, twenty thousand, one hundred ninety-five".