2214242021 has 2 divisors, whose sum is σ = 2214242022. Its totient is φ = 2214242020.

The previous prime is 2214241963. The next prime is 2214242033. The reversal of 2214242021 is 1202424122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2199141025 + 15100996 = 46895^2 + 3886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214242021 - 2¹⁸ = 2213979877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2214241984 and 2214242002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2214242081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107121010 + 1107121011.

It is an arithmetic number, because the mean of its divisors is an integer number (1107121011).

Almost surely, 2^2214242021 is an apocalyptic number.

It is an amenable number.

2214242021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2214242021 is an equidigital number, since it uses as much as digits as its factorization.

2214242021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 2214242021 is about 47055.7331363565. The cubic root of 2214242021 is about 1303.3919352267.

Adding to 2214242021 its reverse (1202424122), we get a palindrome (3416666143).

The spelling of 2214242021 in words is "two billion, two hundred fourteen million, two hundred forty-two thousand, twenty-one".