212211222012001 has 16 divisors (see below), whose sum is σ = 221760499651200. Its totient is φ = 202688893427328.

The previous prime is 212211222011977. The next prime is 212211222012037. The reversal of 212211222012001 is 100210222112212.

It is a cyclic number.

It is not a de Polignac number, because 212211222012001 - 2²⁹ = 212210685141089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212211222012001.

It is not an unprimeable number, because it can be changed into a prime (212211222012071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164039635 + ... + 165328231.

It is an arithmetic number, because the mean of its divisors is an integer number (13860031228200).

Almost surely, 2^{212211222012001} is an apocalyptic number.

It is an amenable number.

212211222012001 is a deficient number, since it is larger than the sum of its proper divisors (9549277639199).

212211222012001 is a wasteful number, since it uses less digits than its factorization.

212211222012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299048.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212211222012001 its reverse (100210222112212), we get a palindrome (312421444124213).

The spelling of 212211222012001 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, one".