120111120210121 has 4 divisors (see below), whose sum is σ = 120111182940672. Its totient is φ = 120111057479572.

The previous prime is 120111120210083. The next prime is 120111120210131. The reversal of 120111120210121 is 121012021111021.

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 120111120210121 - 2⁹ = 120111120209609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111120210095 and 120111120210104.

It is not an unprimeable number, because it can be changed into a prime (120111120210131) 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, 28399741 + ... + 32353786.

It is an arithmetic number, because the mean of its divisors is an integer number (30027795735168).

Almost surely, 2^{120111120210121} is an apocalyptic number.

It is an amenable number.

120111120210121 is a deficient number, since it is larger than the sum of its proper divisors (62730551).

120111120210121 is an equidigital number, since it uses as much as digits as its factorization.

120111120210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62730550.

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

Adding to 120111120210121 its reverse (121012021111021), we get a palindrome (241123141321142).

The spelling of 120111120210121 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, one hundred twenty-one".