212011002022201 has 8 divisors (see below), whose sum is σ = 212045932475208. Its totient is φ = 211976074464000.

The previous prime is 212011002022177. The next prime is 212011002022223. The reversal of 212011002022201 is 102220200110212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15075949466176 + 196935052556025 = 3882776^2 + 14033355^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011002022201 is a prime.

It is a super-2 number, since 2×212011002022201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212011002022301) 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, 148281361 + ... + 149704321.

It is an arithmetic number, because the mean of its divisors is an integer number (26505741559401).

Almost surely, 2^{212011002022201} is an apocalyptic number.

It is an amenable number.

212011002022201 is a deficient number, since it is larger than the sum of its proper divisors (34930453007).

212011002022201 is a wasteful number, since it uses less digits than its factorization.

212011002022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447403.

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

Adding to 212011002022201 its reverse (102220200110212), we get a palindrome (314231202132413).

The spelling of 212011002022201 in words is "two hundred twelve trillion, eleven billion, two million, twenty-two thousand, two hundred one".