2221312342 has 8 divisors (see below), whose sum is σ = 3332311416. Its totient is φ = 1110541872.

The previous prime is 2221312271. The next prime is 2221312349. The reversal of 2221312342 is 2432131222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221312349) 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, 30343 + ... + 73234.

It is an arithmetic number, because the mean of its divisors is an integer number (416538927).

Almost surely, 2^2221312342 is an apocalyptic number.

2221312342 is a deficient number, since it is larger than the sum of its proper divisors (1110999074).

2221312342 is a wasteful number, since it uses less digits than its factorization.

2221312342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114302.

The product of its digits is 1152, while the sum is 22.

The square root of 2221312342 is about 47130.8003539087. The cubic root of 2221312342 is about 1304.7777530443. Note that the first 4 decimals are identical.

Adding to 2221312342 its reverse (2432131222), we get a palindrome (4653443564).

The spelling of 2221312342 in words is "two billion, two hundred twenty-one million, three hundred twelve thousand, three hundred forty-two".