120211112091 has 8 divisors (see below), whose sum is σ = 183178837504. Its totient is φ = 68692064040.

The previous prime is 120211112089. The next prime is 120211112107. The reversal of 120211112091 is 190211112021.

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

It is not a de Polignac number, because 120211112091 - 2¹ = 120211112089 is a prime.

It is a super-2 number, since 2×120211112091² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5724338671 = 120211112091 / (1 + 2 + 0 + 2 + 1 + 1 + 1 + 1 + 2 + 0 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120211112071) 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, 2862169315 + ... + 2862169356.

It is an arithmetic number, because the mean of its divisors is an integer number (22897354688).

Almost surely, 2^120211112091 is an apocalyptic number.

120211112091 is a deficient number, since it is larger than the sum of its proper divisors (62967725413).

120211112091 is an equidigital number, since it uses as much as digits as its factorization.

120211112091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724338681.

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

The spelling of 120211112091 in words is "one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, ninety-one".