2220891442 has 16 divisors (see below), whose sum is σ = 4153355712. Its totient is φ = 865282320.

The previous prime is 2220891433. The next prime is 2220891443. The reversal of 2220891442 is 2441980222.

It is a junction number, because it is equal to n+sod(n) for n = 2220891398 and 2220891407.

It is not an unprimeable number, because it can be changed into a prime (2220891443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7210533 + ... + 7210840.

It is an arithmetic number, because the mean of its divisors is an integer number (259584732).

Almost surely, 2^2220891442 is an apocalyptic number.

2220891442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2220891442 is a deficient number, since it is larger than the sum of its proper divisors (1932464270).

2220891442 is a wasteful number, since it uses less digits than its factorization.

2220891442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421393.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 2220891442 is about 47126.3349094750. The cubic root of 2220891442 is about 1304.6953369523.

The spelling of 2220891442 in words is "two billion, two hundred twenty million, eight hundred ninety-one thousand, four hundred forty-two".