12001211022122 has 16 divisors (see below), whose sum is σ = 20584500648192. Its totient is φ = 5140627142640.

The previous prime is 12001211022107. The next prime is 12001211022127. The reversal of 12001211022122 is 22122011210021.

It is a self number, because there is not a number n which added to its sum of digits gives 12001211022122.

It is not an unprimeable number, because it can be changed into a prime (12001211022127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229057013 + ... + 229109400.

It is an arithmetic number, because the mean of its divisors is an integer number (1286531290512).

Almost surely, 2^{12001211022122} is an apocalyptic number.

12001211022122 is a deficient number, since it is larger than the sum of its proper divisors (8583289626070).

12001211022122 is a wasteful number, since it uses less digits than its factorization.

12001211022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458168293.

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

Adding to 12001211022122 its reverse (22122011210021), we get a palindrome (34123222232143).

The spelling of 12001211022122 in words is "twelve trillion, one billion, two hundred eleven million, twenty-two thousand, one hundred twenty-two".