12002220022 has 16 divisors (see below), whose sum is σ = 19716817680. Its totient is φ = 5445595872.

The previous prime is 12002219981. The next prime is 12002220037. The reversal of 12002220022 is 22002220021.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12002219984 and 12002220011.

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, 3910533 + ... + 3913600.

It is an arithmetic number, because the mean of its divisors is an integer number (1232301105).

Almost surely, 2^12002220022 is an apocalyptic number.

12002220022 is a deficient number, since it is larger than the sum of its proper divisors (7714597658).

12002220022 is a wasteful number, since it uses less digits than its factorization.

12002220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824207.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 12002220022 its reverse (22002220021), we get a palindrome (34004440043).

Subtracting 12002220022 from its reverse (22002220021), we obtain a palindrome (9999999999).

It can be divided in two parts, 1200 and 2220022, that added together give a palindrome (2221222).

The spelling of 12002220022 in words is "twelve billion, two million, two hundred twenty thousand, twenty-two".