4221772071 has 16 divisors (see below), whose sum is σ = 6150806400. Its totient is φ = 2554463520.

The previous prime is 4221772069. The next prime is 4221772073. The reversal of 4221772071 is 1702771224.

It is an interprime number because it is at equal distance from previous prime (4221772069) and next prime (4221772073).

It is not a de Polignac number, because 4221772071 - 2¹ = 4221772069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221772073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84121 + ... + 124578.

It is an arithmetic number, because the mean of its divisors is an integer number (384425400).

Almost surely, 2^4221772071 is an apocalyptic number.

4221772071 is a deficient number, since it is larger than the sum of its proper divisors (1929034329).

4221772071 is a wasteful number, since it uses less digits than its factorization.

4221772071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209326.

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 4221772071 is about 64975.1650324953. The cubic root of 4221772071 is about 1616.2117538527.

The spelling of 4221772071 in words is "four billion, two hundred twenty-one million, seven hundred seventy-two thousand, seventy-one".