2221111442 has 8 divisors (see below), whose sum is σ = 3634546032. Its totient is φ = 1009596100.

The previous prime is 2221111351. The next prime is 2221111447. The reversal of 2221111442 is 2441111222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2221111447) 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 3 ways as a sum of consecutive naturals, for example, 50479784 + ... + 50479827.

It is an arithmetic number, because the mean of its divisors is an integer number (454318254).

Almost surely, 2^2221111442 is an apocalyptic number.

2221111442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2221111442 is a deficient number, since it is larger than the sum of its proper divisors (1413434590).

2221111442 is a wasteful number, since it uses less digits than its factorization.

2221111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100959624.

The product of its digits is 256, while the sum is 20.

The square root of 2221111442 is about 47128.6690030601. The cubic root of 2221111442 is about 1304.7384162749.

Adding to 2221111442 its reverse (2441111222), we get a palindrome (4662222664).

The spelling of 2221111442 in words is "two billion, two hundred twenty-one million, one hundred eleven thousand, four hundred forty-two".