2120034021 has 8 divisors (see below), whose sum is σ = 3230528064. Its totient is φ = 1211448000.

The previous prime is 2120034001. The next prime is 2120034043. The reversal of 2120034021 is 1204300212.

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

It is not a de Polignac number, because 2120034021 - 2⁵ = 2120033989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120034001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50476980 + ... + 50477021.

It is an arithmetic number, because the mean of its divisors is an integer number (403816008).

Almost surely, 2^2120034021 is an apocalyptic number.

2120034021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2120034021 is a deficient number, since it is larger than the sum of its proper divisors (1110494043).

2120034021 is a wasteful number, since it uses less digits than its factorization.

2120034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100954011.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2120034021 is about 46043.8271758550. The cubic root of 2120034021 is about 1284.6385294452.

Adding to 2120034021 its reverse (1204300212), we get a palindrome (3324334233).

The spelling of 2120034021 in words is "two billion, one hundred twenty million, thirty-four thousand, twenty-one".