12042221002 has 32 divisors (see below), whose sum is σ = 21398344704. Its totient is φ = 4973702400.

The previous prime is 12042220991. The next prime is 12042221003. The reversal of 12042221002 is 20012224021.

It is a super-2 number, since 2×12042221002² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12042221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47028 + ... + 162160.

It is an arithmetic number, because the mean of its divisors is an integer number (668698272).

Almost surely, 2^12042221002 is an apocalyptic number.

12042221002 is a deficient number, since it is larger than the sum of its proper divisors (9356123702).

12042221002 is a wasteful number, since it uses less digits than its factorization.

12042221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115414.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12042221002 its reverse (20012224021), we get a palindrome (32054445023).

The spelling of 12042221002 in words is "twelve billion, forty-two million, two hundred twenty-one thousand, two".