2221111994 has 32 divisors (see below), whose sum is σ = 3572121600. Its totient is φ = 1033956720.

The previous prime is 2221111993. The next prime is 2221112009. The reversal of 2221111994 is 4991111222.

2221111994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2221111994.

It is not an unprimeable number, because it can be changed into a prime (2221111993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165467 + ... + 178385.

It is an arithmetic number, because the mean of its divisors is an integer number (111628800).

Almost surely, 2^2221111994 is an apocalyptic number.

2221111994 is a deficient number, since it is larger than the sum of its proper divisors (1351009606).

2221111994 is a wasteful number, since it uses less digits than its factorization.

2221111994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058.

The product of its digits is 2592, while the sum is 32.

The square root of 2221111994 is about 47128.6748593677. The cubic root of 2221111994 is about 1304.7385243613.

The spelling of 2221111994 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, nine hundred ninety-four".