120222222121 has 4 divisors (see below), whose sum is σ = 120232216912. Its totient is φ = 120212227332.

The previous prime is 120222222119. The next prime is 120222222173. The reversal of 120222222121 is 121222222021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121222222021 = 1759 ⋅68915419.

It is a cyclic number.

It is not a de Polignac number, because 120222222121 - 2¹ = 120222222119 is a prime.

It is a super-2 number, since 2×120222222121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120222225121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4979331 + ... + 5003416.

It is an arithmetic number, because the mean of its divisors is an integer number (30058054228).

Almost surely, 2^120222222121 is an apocalyptic number.

It is an amenable number.

120222222121 is a deficient number, since it is larger than the sum of its proper divisors (9994791).

120222222121 is an equidigital number, since it uses as much as digits as its factorization.

120222222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994790.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 120222222121 its reverse (121222222021), we get a palindrome (241444444142).

The spelling of 120222222121 in words is "one hundred twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".