2142210451 has 2 divisors, whose sum is σ = 2142210452. Its totient is φ = 2142210450.

The previous prime is 2142210431. The next prime is 2142210467. The reversal of 2142210451 is 1540122412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142210451 - 2⁹ = 2142209939 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142210431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071105225 + 1071105226.

It is an arithmetic number, because the mean of its divisors is an integer number (1071105226).

Almost surely, 2^2142210451 is an apocalyptic number.

2142210451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142210451 is an equidigital number, since it uses as much as digits as its factorization.

2142210451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2142210451 is about 46284.0193911462. The cubic root of 2142210451 is about 1289.1022841004.

Adding to 2142210451 its reverse (1540122412), we get a palindrome (3682332863).

The spelling of 2142210451 in words is "two billion, one hundred forty-two million, two hundred ten thousand, four hundred fifty-one".