1222210042 has 8 divisors (see below), whose sum is σ = 1846504800. Its totient is φ = 606708444.

The previous prime is 1222210039. The next prime is 1222210049. The reversal of 1222210042 is 2400122221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1222209998 and 1222210025.

It is not an unprimeable number, because it can be changed into a prime (1222210049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2197942 + ... + 2198497.

It is an arithmetic number, because the mean of its divisors is an integer number (230813100).

Almost surely, 2^1222210042 is an apocalyptic number.

1222210042 is a deficient number, since it is larger than the sum of its proper divisors (624294758).

1222210042 is a wasteful number, since it uses less digits than its factorization.

1222210042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4396580.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1222210042 is about 34960.1207377778. The cubic root of 1222210042 is about 1069.1745583067.

Adding to 1222210042 its reverse (2400122221), we get a palindrome (3622332263).

The spelling of 1222210042 in words is "one billion, two hundred twenty-two million, two hundred ten thousand, forty-two".