1222125542 has 16 divisors (see below), whose sum is σ = 2008433232. Its totient is φ = 553125120.

The previous prime is 1222125521. The next prime is 1222125547. The reversal of 1222125542 is 2455212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222125547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114083 + ... + 124334.

It is an arithmetic number, because the mean of its divisors is an integer number (125527077).

Almost surely, 2^1222125542 is an apocalyptic number.

1222125542 is a deficient number, since it is larger than the sum of its proper divisors (786307690).

1222125542 is a wasteful number, since it uses less digits than its factorization.

1222125542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238663.

The product of its digits is 3200, while the sum is 26.

The square root of 1222125542 is about 34958.9121970350. The cubic root of 1222125542 is about 1069.1499178796.

Adding to 1222125542 its reverse (2455212221), we get a palindrome (3677337763).

The spelling of 1222125542 in words is "one billion, two hundred twenty-two million, one hundred twenty-five thousand, five hundred forty-two".