22071099 has 16 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 13892736.

The previous prime is 22071097. The next prime is 22071113. The reversal of 22071099 is 99017022.

It is not a de Polignac number, because 22071099 - 2¹ = 22071097 is a prime.

It is a super-2 number, since 2×22071099² = 974266822135602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22071097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3427 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (1944000).

Almost surely, 2^22071099 is an apocalyptic number.

22071099 is a deficient number, since it is larger than the sum of its proper divisors (9032901).

22071099 is a wasteful number, since it uses less digits than its factorization.

22071099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 22071099 is about 4697.9888250186. The cubic root of 22071099 is about 280.5054602856.

The spelling of 22071099 in words is "twenty-two million, seventy-one thousand, ninety-nine".