120201111121121 has 4 divisors (see below), whose sum is σ = 120201163467312. Its totient is φ = 120201058774932.

The previous prime is 120201111121109. The next prime is 120201111121123. The reversal of 120201111121121 is 121121111102021.

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 120201111121121 - 2³⁰ = 120200037379297 is a prime.

It is a super-2 number, since 2×120201111121121² (a number of 29 digits) contains 22 as substring.

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 120201111121121.

It is not an unprimeable number, because it can be changed into a prime (120201111121123) 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, 22562675 + ... + 27376568.

It is an arithmetic number, because the mean of its divisors is an integer number (30050290866828).

Almost surely, 2^{120201111121121} is an apocalyptic number.

It is an amenable number.

120201111121121 is a deficient number, since it is larger than the sum of its proper divisors (52346191).

120201111121121 is an equidigital number, since it uses as much as digits as its factorization.

120201111121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52346190.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 120201111121121 its reverse (121121111102021), we get a palindrome (241322222223142).

The spelling of 120201111121121 in words is "one hundred twenty trillion, two hundred one billion, one hundred eleven million, one hundred twenty-one thousand, one hundred twenty-one".