4224292921 has 2 divisors, whose sum is σ = 4224292922. Its totient is φ = 4224292920.

The previous prime is 4224292909. The next prime is 4224292939. The reversal of 4224292921 is 1292924224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2414641321 + 1809651600 = 49139^2 + 42540^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224292921 - 2⁹ = 4224292409 is a prime.

It is not a weakly prime, because it can be changed into another prime (4224290921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112146460 + 2112146461.

It is an arithmetic number, because the mean of its divisors is an integer number (2112146461).

Almost surely, 2^4224292921 is an apocalyptic number.

It is an amenable number.

4224292921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224292921 is an equidigital number, since it uses as much as digits as its factorization.

4224292921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 4224292921 is about 64994.5607031850. The cubic root of 4224292921 is about 1616.5333736752.

The spelling of 4224292921 in words is "four billion, two hundred twenty-four million, two hundred ninety-two thousand, nine hundred twenty-one".