1222606542 has 8 divisors (see below), whose sum is σ = 2445213096. Its totient is φ = 407535512.

The previous prime is 1222606531. The next prime is 1222606543. The reversal of 1222606542 is 2456062221.

It is a happy number.

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

1222606542 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222606543) 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, 101883873 + ... + 101883884.

It is an arithmetic number, because the mean of its divisors is an integer number (305651637).

Almost surely, 2^1222606542 is an apocalyptic number.

1222606542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222606542 is a wasteful number, since it uses less digits than its factorization.

1222606542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203767762.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1222606542 is about 34965.7910249432. The cubic root of 1222606542 is about 1069.2901636074.

Adding to 1222606542 its reverse (2456062221), we get a palindrome (3678668763).

The spelling of 1222606542 in words is "one billion, two hundred twenty-two million, six hundred six thousand, five hundred forty-two".