2104214021 has 8 divisors (see below), whose sum is σ = 2589801984. Its totient is φ = 1664872560.

The previous prime is 2104214011. The next prime is 2104214027. The reversal of 2104214021 is 1204124012.

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

It is not a de Polignac number, because 2104214021 - 2¹⁴ = 2104197637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104214027) 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, 11561525 + ... + 11561706.

It is an arithmetic number, because the mean of its divisors is an integer number (323725248).

Almost surely, 2^2104214021 is an apocalyptic number.

It is an amenable number.

2104214021 is a deficient number, since it is larger than the sum of its proper divisors (485587963).

2104214021 is a wasteful number, since it uses less digits than its factorization.

2104214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23123251.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2104214021 is about 45871.7126451586. The cubic root of 2104214021 is about 1281.4351621161.

Adding to 2104214021 its reverse (1204124012), we get a palindrome (3308338033).

Subtracting from 2104214021 its reverse (1204124012), we obtain a palindrome (900090009).

The spelling of 2104214021 in words is "two billion, one hundred four million, two hundred fourteen thousand, twenty-one".