212101121122201 has 8 divisors (see below), whose sum is σ = 213286113782784. Its totient is φ = 210918216556320.

The previous prime is 212101121122199. The next prime is 212101121122207. The reversal of 212101121122201 is 102221121101212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212101121122201 - 2¹ = 212101121122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212101121122207) 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, 521819956 + ... + 522226261.

It is an arithmetic number, because the mean of its divisors is an integer number (26660764222848).

Almost surely, 2^{212101121122201} is an apocalyptic number.

It is an amenable number.

212101121122201 is a deficient number, since it is larger than the sum of its proper divisors (1184992660583).

212101121122201 is a wasteful number, since it uses less digits than its factorization.

212101121122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044047351.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212101121122201 its reverse (102221121101212), we get a palindrome (314322242223413).

The spelling of 212101121122201 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".