2211209394 has 16 divisors (see below), whose sum is σ = 4425207168. Its totient is φ = 736605072.

The previous prime is 2211209393. The next prime is 2211209401. The reversal of 2211209394 is 4939021122.

It is a super-2 number, since 2×2211209394² = 9778893968227694472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2211209393) 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 7 ways as a sum of consecutive naturals, for example, 105802 + ... + 124965.

It is an arithmetic number, because the mean of its divisors is an integer number (276575448).

Almost surely, 2^2211209394 is an apocalyptic number.

2211209394 is an abundant number, since it is smaller than the sum of its proper divisors (2213997774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211209394 is a wasteful number, since it uses less digits than its factorization.

2211209394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232369.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2211209394 is about 47023.4983173307. The cubic root of 2211209394 is about 1302.7966212770.

The spelling of 2211209394 in words is "two billion, two hundred eleven million, two hundred nine thousand, three hundred ninety-four".