12021002211122 has 32 divisors (see below), whose sum is σ = 18482506847280. Its totient is φ = 5861551288320.

The previous prime is 12021002211109. The next prime is 12021002211137. The reversal of 12021002211122 is 22111220012021.

It can be written as a sum of positive squares in 8 ways, for example, as 7377584901241 + 4643417309881 = 2716171^2 + 2154859^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12021002211122.

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, 75638222 + ... + 75796982.

Almost surely, 2^{12021002211122} is an apocalyptic number.

12021002211122 is a deficient number, since it is larger than the sum of its proper divisors (6461504636158).

12021002211122 is a wasteful number, since it uses less digits than its factorization.

12021002211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163118.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12021002211122 its reverse (22111220012021), we get a palindrome (34132222223143).

The spelling of 12021002211122 in words is "twelve trillion, twenty-one billion, two million, two hundred eleven thousand, one hundred twenty-two".