1142122222 has 8 divisors (see below), whose sum is σ = 1717051896. Its totient is φ = 569771592.

The previous prime is 1142122217. The next prime is 1142122229. The reversal of 1142122222 is 2222212411.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1142122222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142122229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643653 + ... + 645424.

It is an arithmetic number, because the mean of its divisors is an integer number (214631487).

Almost surely, 2^1142122222 is an apocalyptic number.

1142122222 is a deficient number, since it is larger than the sum of its proper divisors (574929674).

1142122222 is a wasteful number, since it uses less digits than its factorization.

1142122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289522.

The product of its digits is 256, while the sum is 19.

The square root of 1142122222 is about 33795.2988150719. The cubic root of 1142122222 is about 1045.2917607535.

Adding to 1142122222 its reverse (2222212411), we get a palindrome (3364334633).

The spelling of 1142122222 in words is "one billion, one hundred forty-two million, one hundred twenty-two thousand, two hundred twenty-two".