2221624051 has 2 divisors, whose sum is σ = 2221624052. Its totient is φ = 2221624050.

The previous prime is 2221624019. The next prime is 2221624057. The reversal of 2221624051 is 1504261222.

2221624051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221624051 - 2⁵ = 2221624019 is a prime.

It is a super-2 number, since 2×2221624051² = 9871226847963301202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2221624057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110812025 + 1110812026.

It is an arithmetic number, because the mean of its divisors is an integer number (1110812026).

Almost surely, 2^2221624051 is an apocalyptic number.

2221624051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221624051 is an equidigital number, since it uses as much as digits as its factorization.

2221624051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2221624051 is about 47134.1070881798. The cubic root of 2221624051 is about 1304.8387818242.

Adding to 2221624051 its reverse (1504261222), we get a palindrome (3725885273).

The spelling of 2221624051 in words is "two billion, two hundred twenty-one million, six hundred twenty-four thousand, fifty-one".