12211342142 has 16 divisors (see below), whose sum is σ = 19294122240. Its totient is φ = 5780403288.

The previous prime is 12211342111. The next prime is 12211342181. The reversal of 12211342142 is 24124311221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51548 + ... + 164559.

It is an arithmetic number, because the mean of its divisors is an integer number (1205882640).

Almost surely, 2^12211342142 is an apocalyptic number.

12211342142 is a deficient number, since it is larger than the sum of its proper divisors (7082780098).

12211342142 is a wasteful number, since it uses less digits than its factorization.

12211342142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217615.

The product of its digits is 768, while the sum is 23.

Adding to 12211342142 its reverse (24124311221), we get a palindrome (36335653363).

The spelling of 12211342142 in words is "twelve billion, two hundred eleven million, three hundred forty-two thousand, one hundred forty-two".