212211110201001 has 4 divisors (see below), whose sum is σ = 282948146934672. Its totient is φ = 141474073467332.

The previous prime is 212211110200979. The next prime is 212211110201029. The reversal of 212211110201001 is 100102011112212.

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 212211110201001 - 2¹⁴ = 212211110184617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212211110601001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35368518366831 + ... + 35368518366836.

It is an arithmetic number, because the mean of its divisors is an integer number (70737036733668).

Almost surely, 2^{212211110201001} is an apocalyptic number.

It is an amenable number.

212211110201001 is a deficient number, since it is larger than the sum of its proper divisors (70737036733671).

212211110201001 is an equidigital number, since it uses as much as digits as its factorization.

212211110201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70737036733670.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212211110201001 its reverse (100102011112212), we get a palindrome (312313121313213).

The spelling of 212211110201001 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred ten million, two hundred one thousand, one".