12011220022 has 8 divisors (see below), whose sum is σ = 18017328816. Its totient is φ = 6005443752.

The previous prime is 12011220019. The next prime is 12011220073. The reversal of 12011220022 is 22002211021.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12011219984 and 12011220011.

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 3 ways as a sum of consecutive naturals, for example, 49488 + ... + 162700.

It is an arithmetic number, because the mean of its divisors is an integer number (2252166102).

Almost surely, 2^12011220022 is an apocalyptic number.

12011220022 is a deficient number, since it is larger than the sum of its proper divisors (6006108794).

12011220022 is a wasteful number, since it uses less digits than its factorization.

12011220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166262.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12011220022 its reverse (22002211021), we get a palindrome (34013431043).

Subtracting 12011220022 from its reverse (22002211021), we obtain a palindrome (9990990999).

The spelling of 12011220022 in words is "twelve billion, eleven million, two hundred twenty thousand, twenty-two".