12021011220022 has 32 divisors (see below), whose sum is σ = 20971724938560. Its totient is φ = 5061530073600.

The previous prime is 12021011219981. The next prime is 12021011220059. The reversal of 12021011220022 is 22002211012021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021011219978 and 12021011220005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30529479 + ... + 30920722.

It is an arithmetic number, because the mean of its divisors is an integer number (655366404330).

Almost surely, 2^{12021011220022} is an apocalyptic number.

12021011220022 is a deficient number, since it is larger than the sum of its proper divisors (8950713718538).

12021011220022 is a wasteful number, since it uses less digits than its factorization.

12021011220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61450456.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12021011220022 its reverse (22002211012021), we get a palindrome (34023222232043).

The spelling of 12021011220022 in words is "twelve trillion, twenty-one billion, eleven million, two hundred twenty thousand, twenty-two".