120222112012121 has 4 divisors (see below), whose sum is σ = 137396699442432. Its totient is φ = 103047524581812.

The previous prime is 120222112012111. The next prime is 120222112012129. The reversal of 120222112012121 is 121210211222021.

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 a de Polignac number, because none of the positive numbers 2^k-120222112012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120222112012093 and 120222112012102.

It is not an unprimeable number, because it can be changed into a prime (120222112012129) 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, 8587293715145 + ... + 8587293715158.

It is an arithmetic number, because the mean of its divisors is an integer number (34349174860608).

Almost surely, 2^{120222112012121} is an apocalyptic number.

It is an amenable number.

120222112012121 is a deficient number, since it is larger than the sum of its proper divisors (17174587430311).

120222112012121 is an equidigital number, since it uses as much as digits as its factorization.

120222112012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17174587430310.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 120222112012121 its reverse (121210211222021), we get a palindrome (241432323234142).

The spelling of 120222112012121 in words is "one hundred twenty trillion, two hundred twenty-two billion, one hundred twelve million, twelve thousand, one hundred twenty-one".