122011120191 has 8 divisors (see below), whose sum is σ = 167078290864. Its totient is φ = 79142348160.

The previous prime is 122011120129. The next prime is 122011120211. The reversal of 122011120191 is 191021110221.

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

It is not a de Polignac number, because 122011120191 - 2²⁷ = 121876902463 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 (122011120391) 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, 549599530 + ... + 549599751.

It is an arithmetic number, because the mean of its divisors is an integer number (20884786358).

Almost surely, 2^122011120191 is an apocalyptic number.

122011120191 is a deficient number, since it is larger than the sum of its proper divisors (45067170673).

122011120191 is a wasteful number, since it uses less digits than its factorization.

122011120191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099199321.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 122011120191 in words is "one hundred twenty-two billion, eleven million, one hundred twenty thousand, one hundred ninety-one".