12021221010022 has 16 divisors (see below), whose sum is σ = 20607860540160. Its totient is φ = 5151938587848.

The previous prime is 12021221009969. The next prime is 12021221010041. The reversal of 12021221010022 is 22001012212021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12021221009978 and 12021221010005.

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, 6174129 + ... + 7884307.

It is an arithmetic number, because the mean of its divisors is an integer number (1287991283760).

Almost surely, 2^{12021221010022} is an apocalyptic number.

12021221010022 is a deficient number, since it is larger than the sum of its proper divisors (8586639530138).

12021221010022 is a wasteful number, since it uses less digits than its factorization.

12021221010022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212275.

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

Adding to 12021221010022 its reverse (22001012212021), we get a palindrome (34022233222043).

The spelling of 12021221010022 in words is "twelve trillion, twenty-one billion, two hundred twenty-one million, ten thousand, twenty-two".