120212220021 has 8 divisors (see below), whose sum is σ = 160286861280. Its totient is φ = 80139529392.

The previous prime is 120212220017. The next prime is 120212220061. The reversal of 120212220021 is 120022212021.

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

It is not a de Polignac number, because 120212220021 - 2² = 120212220017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212220061) 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 7 ways as a sum of consecutive naturals, for example, 337230 + ... + 595103.

It is an arithmetic number, because the mean of its divisors is an integer number (20035857660).

Almost surely, 2^120212220021 is an apocalyptic number.

It is an amenable number.

120212220021 is a deficient number, since it is larger than the sum of its proper divisors (40074641259).

120212220021 is an equidigital number, since it uses as much as digits as its factorization.

120212220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975315.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120212220021 its reverse (120022212021), we get a palindrome (240234432042).

The spelling of 120212220021 in words is "one hundred twenty billion, two hundred twelve million, two hundred twenty thousand, twenty-one".