2214215121 has 4 divisors (see below), whose sum is σ = 2952286832. Its totient is φ = 1476143412.

The previous prime is 2214215119. The next prime is 2214215123. The reversal of 2214215121 is 1215124122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2214215119) and next prime (2214215123).

It is not a de Polignac number, because 2214215121 - 2¹ = 2214215119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2214215123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369035851 + ... + 369035856.

It is an arithmetic number, because the mean of its divisors is an integer number (738071708).

Almost surely, 2^2214215121 is an apocalyptic number.

It is an amenable number.

2214215121 is a deficient number, since it is larger than the sum of its proper divisors (738071711).

2214215121 is an equidigital number, since it uses as much as digits as its factorization.

2214215121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738071710.

The product of its digits is 320, while the sum is 21.

The square root of 2214215121 is about 47055.4473042176. The cubic root of 2214215121 is about 1303.3866570645.

Adding to 2214215121 its reverse (1215124122), we get a palindrome (3429339243).

Subtracting from 2214215121 its reverse (1215124122), we obtain a palindrome (999090999).

The spelling of 2214215121 in words is "two billion, two hundred fourteen million, two hundred fifteen thousand, one hundred twenty-one".