12021101222 has 16 divisors (see below), whose sum is σ = 20440739760. Its totient is φ = 5256189792.

The previous prime is 12021101219. The next prime is 12021101233. The reversal of 12021101222 is 22210112021.

It is a junction number, because it is equal to n+sod(n) for n = 12021101197 and 12021101206.

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, 12166613 + ... + 12167600.

It is an arithmetic number, because the mean of its divisors is an integer number (1277546235).

Almost surely, 2^12021101222 is an apocalyptic number.

12021101222 is a deficient number, since it is larger than the sum of its proper divisors (8419638538).

12021101222 is a wasteful number, since it uses less digits than its factorization.

12021101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24334247.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12021101222 its reverse (22210112021), we get a palindrome (34231213243).

The spelling of 12021101222 in words is "twelve billion, twenty-one million, one hundred one thousand, two hundred twenty-two".