212200120122001 has 4 divisors (see below), whose sum is σ = 231491040133104. Its totient is φ = 192909200110900.

The previous prime is 212200120121999. The next prime is 212200120122061. The reversal of 212200120122001 is 100221021002212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212200120122001 - 2¹ = 212200120121999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212200120122061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9645460005535 + ... + 9645460005556.

It is an arithmetic number, because the mean of its divisors is an integer number (57872760033276).

Almost surely, 2^{212200120122001} is an apocalyptic number.

It is an amenable number.

212200120122001 is a deficient number, since it is larger than the sum of its proper divisors (19290920011103).

212200120122001 is a wasteful number, since it uses less digits than its factorization.

212200120122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19290920011102.

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

Adding to 212200120122001 its reverse (100221021002212), we get a palindrome (312421141124213).

The spelling of 212200120122001 in words is "two hundred twelve trillion, two hundred billion, one hundred twenty million, one hundred twenty-two thousand, one".