120022121 has 4 divisors (see below), whose sum is σ = 120044544. Its totient is φ = 119999700.

The previous prime is 120022103. The next prime is 120022127. The reversal of 120022121 is 121220021.

It is a happy number.

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: 121220021 = 13 ⋅9324617.

It is a cyclic number.

It is not a de Polignac number, because 120022121 - 2¹⁸ = 119759977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120022127) 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, 2036 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (30011136).

Almost surely, 2^120022121 is an apocalyptic number.

It is an amenable number.

120022121 is a deficient number, since it is larger than the sum of its proper divisors (22423).

120022121 is an equidigital number, since it uses as much as digits as its factorization.

120022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22422.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 120022121 is about 10955.4607844673. The cubic root of 120022121 is about 493.2727213802.

Adding to 120022121 its reverse (121220021), we get a palindrome (241242142).

The spelling of 120022121 in words is "one hundred twenty million, twenty-two thousand, one hundred twenty-one".