4221311929 has 2 divisors, whose sum is σ = 4221311930. Its totient is φ = 4221311928.

The previous prime is 4221311917. The next prime is 4221312037. The reversal of 4221311929 is 9291131224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3292464400 + 928847529 = 57380^2 + 30477^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221311929 - 2¹⁷ = 4221180857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4221311894 and 4221311903.

It is not a weakly prime, because it can be changed into another prime (4221312929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110655964 + 2110655965.

It is an arithmetic number, because the mean of its divisors is an integer number (2110655965).

Almost surely, 2^4221311929 is an apocalyptic number.

It is an amenable number.

4221311929 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221311929 is an equidigital number, since it uses as much as digits as its factorization.

4221311929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 4221311929 is about 64971.6240292637. The cubic root of 4221311929 is about 1616.1530333347.

The spelling of 4221311929 in words is "four billion, two hundred twenty-one million, three hundred eleven thousand, nine hundred twenty-nine".