120212001021 has 16 divisors (see below), whose sum is σ = 185498931200. Its totient is φ = 67823044848.

The previous prime is 120212000959. The next prime is 120212001059. The reversal of 120212001021 is 120100212021.

It is not a de Polignac number, because 120212001021 - 2⁷ = 120212000893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120212000988 and 120212001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120212001421) 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 15 ways as a sum of consecutive naturals, for example, 36228601 + ... + 36231918.

It is an arithmetic number, because the mean of its divisors is an integer number (11593683200).

Almost surely, 2^120212001021 is an apocalyptic number.

It is an amenable number.

120212001021 is a deficient number, since it is larger than the sum of its proper divisors (65286930179).

120212001021 is an equidigital number, since it uses as much as digits as its factorization.

120212001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72460608.

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

Adding to 120212001021 its reverse (120100212021), we get a palindrome (240312213042).

The spelling of 120212001021 in words is "one hundred twenty billion, two hundred twelve million, one thousand, twenty-one".