4222621157 has 2 divisors, whose sum is σ = 4222621158. Its totient is φ = 4222621156.

The previous prime is 4222621093. The next prime is 4222621163. The reversal of 4222621157 is 7511262224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4189455076 + 33166081 = 64726^2 + 5759^2 .

It is a cyclic number.

It is not a de Polignac number, because 4222621157 - 2⁶ = 4222621093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4222621187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111310578 + 2111310579.

It is an arithmetic number, because the mean of its divisors is an integer number (2111310579).

Almost surely, 2^4222621157 is an apocalyptic number.

It is an amenable number.

4222621157 is a deficient number, since it is larger than the sum of its proper divisors (1).

4222621157 is an equidigital number, since it uses as much as digits as its factorization.

4222621157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 32.

The square root of 4222621157 is about 64981.6986312300. The cubic root of 4222621157 is about 1616.3200978341.

The spelling of 4222621157 in words is "four billion, two hundred twenty-two million, six hundred twenty-one thousand, one hundred fifty-seven".