120212010021 has 16 divisors (see below), whose sum is σ = 161940683520. Its totient is φ = 79313035200.

The previous prime is 120212010011. The next prime is 120212010031. The reversal of 120212010021 is 120010212021.

It is an interprime number because it is at equal distance from previous prime (120212010011) and next prime (120212010031).

It is not a de Polignac number, because 120212010021 - 2²⁶ = 120144901157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120212009979 and 120212010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212010001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613716 + ... + 785538.

It is an arithmetic number, because the mean of its divisors is an integer number (10121292720).

Almost surely, 2^120212010021 is an apocalyptic number.

It is an amenable number.

120212010021 is a deficient number, since it is larger than the sum of its proper divisors (41728673499).

120212010021 is a wasteful number, since it uses less digits than its factorization.

120212010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174236.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120212010021 its reverse (120010212021), we get a palindrome (240222222042).

The spelling of 120212010021 in words is "one hundred twenty billion, two hundred twelve million, ten thousand, twenty-one".