120901121 has 4 divisors (see below), whose sum is σ = 131892144. Its totient is φ = 109910100.

The previous prime is 120901117. The next prime is 120901129. The reversal of 120901121 is 121109021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120901121 - 2² = 120901117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120901121.

It is not an unprimeable number, because it can be changed into a prime (120901129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495495 + ... + 5495516.

It is an arithmetic number, because the mean of its divisors is an integer number (32973036).

Almost surely, 2^120901121 is an apocalyptic number.

120901121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120901121 is a deficient number, since it is larger than the sum of its proper divisors (10991023).

120901121 is a wasteful number, since it uses less digits than its factorization.

120901121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991022.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 120901121 is about 10995.5045814187. The cubic root of 120901121 is about 494.4739791847.

The spelling of 120901121 in words is "one hundred twenty million, nine hundred one thousand, one hundred twenty-one".