212210012220001 has 32 divisors (see below), whose sum is σ = 231995175408000. Its totient is φ = 193469691916800.

The previous prime is 212210012219999. The next prime is 212210012220061. The reversal of 212210012220001 is 100022210012212.

It is a happy number.

It is not a de Polignac number, because 212210012220001 - 2¹ = 212210012219999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212210012220061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1132725 + ... + 20632573.

It is an arithmetic number, because the mean of its divisors is an integer number (7249849231500).

Almost surely, 2^{212210012220001} is an apocalyptic number.

It is an amenable number.

212210012220001 is a deficient number, since it is larger than the sum of its proper divisors (19785163187999).

212210012220001 is a wasteful number, since it uses less digits than its factorization.

212210012220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500129.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212210012220001 its reverse (100022210012212), we get a palindrome (312232222232213).

The spelling of 212210012220001 in words is "two hundred twelve trillion, two hundred ten billion, twelve million, two hundred twenty thousand, one".