2142214421 has 16 divisors (see below), whose sum is σ = 2381114880. Its totient is φ = 1918064640.

The previous prime is 2142214391. The next prime is 2142214429. The reversal of 2142214421 is 1244122412.

It is a cyclic number.

It is not a de Polignac number, because 2142214421 - 2¹⁸ = 2141952277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142214429) 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, 3356 + ... + 65541.

It is an arithmetic number, because the mean of its divisors is an integer number (148819680).

Almost surely, 2^2142214421 is an apocalyptic number.

It is an amenable number.

2142214421 is a deficient number, since it is larger than the sum of its proper divisors (238900459).

2142214421 is a wasteful number, since it uses less digits than its factorization.

2142214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69004.

The product of its digits is 1024, while the sum is 23.

The square root of 2142214421 is about 46284.0622784993. The cubic root of 2142214421 is about 1289.1030804325.

Adding to 2142214421 its reverse (1244122412), we get a palindrome (3386336833).

The spelling of 2142214421 in words is "two billion, one hundred forty-two million, two hundred fourteen thousand, four hundred twenty-one".