1212342223222 has 16 divisors (see below), whose sum is σ = 1972488183120. Its totient is φ = 555517076832.

The previous prime is 1212342223217. The next prime is 1212342223319. The reversal of 1212342223222 is 2223222432121.

It is a happy number.

It is a super-2 number, since 2×1212342223222² (a number of 25 digits) contains 22 as substring.

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, 167724973 + ... + 167732200.

It is an arithmetic number, because the mean of its divisors is an integer number (123280511445).

Almost surely, 2^{1212342223222} is an apocalyptic number.

1212342223222 is a deficient number, since it is larger than the sum of its proper divisors (760145959898).

1212342223222 is a wasteful number, since it uses less digits than its factorization.

1212342223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335457327.

The product of its digits is 9216, while the sum is 28.

Adding to 1212342223222 its reverse (2223222432121), we get a palindrome (3435564655343).

The spelling of 1212342223222 in words is "one trillion, two hundred twelve billion, three hundred forty-two million, two hundred twenty-three thousand, two hundred twenty-two".