120021121091 has 8 divisors (see below), whose sum is σ = 120271640400. Its totient is φ = 119770819168.

The previous prime is 120021121067. The next prime is 120021121111. The reversal of 120021121091 is 190121120021.

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 120021121091 - 2³⁴ = 102841251907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120021121291) 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, 1075385 + ... + 1181733.

It is an arithmetic number, because the mean of its divisors is an integer number (15033955050).

Almost surely, 2^120021121091 is an apocalyptic number.

120021121091 is a deficient number, since it is larger than the sum of its proper divisors (250519309).

120021121091 is a wasteful number, since it uses less digits than its factorization.

120021121091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108693.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120021121091 in words is "one hundred twenty billion, twenty-one million, one hundred twenty-one thousand, ninety-one".