12021222002 has 32 divisors (see below), whose sum is σ = 19495892592. Its totient is φ = 5538668544.

The previous prime is 12021221999. The next prime is 12021222023. The reversal of 12021222002 is 20022212021.

It can be written as a sum of positive squares in 8 ways, for example, as 11622780481 + 398441521 = 107809^2 + 19961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322358 + ... + 357710.

Almost surely, 2^12021222002 is an apocalyptic number.

12021222002 is a deficient number, since it is larger than the sum of its proper divisors (7474670590).

12021222002 is a wasteful number, since it uses less digits than its factorization.

12021222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35582.

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

Adding to 12021222002 its reverse (20022212021), we get a palindrome (32043434023).

The spelling of 12021222002 in words is "twelve billion, twenty-one million, two hundred twenty-two thousand, two".