12021002222 has 16 divisors (see below), whose sum is σ = 18659637360. Its totient is φ = 5801264448.

The previous prime is 12021002219. The next prime is 12021002269. The reversal of 12021002222 is 22220012021.

It is a junction number, because it is equal to n+sod(n) for n = 12021002197 and 12021002206.

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, 144098 + ... + 211674.

It is an arithmetic number, because the mean of its divisors is an integer number (1166227335).

Almost surely, 2^12021002222 is an apocalyptic number.

12021002222 is a deficient number, since it is larger than the sum of its proper divisors (6638635138).

12021002222 is a wasteful number, since it uses less digits than its factorization.

12021002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70675.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12021002222 its reverse (22220012021), we get a palindrome (34241014243).

The spelling of 12021002222 in words is "twelve billion, twenty-one million, two thousand, two hundred twenty-two".