12542211331222 has 16 divisors (see below), whose sum is σ = 18843127299792. Its totient is φ = 6261169377280.

The previous prime is 12542211331219. The next prime is 12542211331241. The reversal of 12542211331222 is 22213311224521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67125813 + ... + 67312399.

It is an arithmetic number, because the mean of its divisors is an integer number (1177695456237).

Almost surely, 2^{12542211331222} is an apocalyptic number.

12542211331222 is a deficient number, since it is larger than the sum of its proper divisors (6300915968570).

12542211331222 is a wasteful number, since it uses less digits than its factorization.

12542211331222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239663.

The product of its digits is 11520, while the sum is 31.

Adding to 12542211331222 its reverse (22213311224521), we get a palindrome (34755522555743).

The spelling of 12542211331222 in words is "twelve trillion, five hundred forty-two billion, two hundred eleven million, three hundred thirty-one thousand, two hundred twenty-two".