120212210121 has 8 divisors (see below), whose sum is σ = 160982873280. Its totient is φ = 79791510192.

The previous prime is 120212210101. The next prime is 120212210171. The reversal of 120212210121 is 121012212021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120212210121 - 2⁶ = 120212210057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120212210121.

It is not an unprimeable number, because it can be changed into a prime (120212210101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87490005 + ... + 87491378.

It is an arithmetic number, because the mean of its divisors is an integer number (20122859160).

Almost surely, 2^120212210121 is an apocalyptic number.

It is an amenable number.

120212210121 is a deficient number, since it is larger than the sum of its proper divisors (40770663159).

120212210121 is a wasteful number, since it uses less digits than its factorization.

120212210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174981615.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120212210121 its reverse (121012212021), we get a palindrome (241224422142).

The spelling of 120212210121 in words is "one hundred twenty billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-one".