212010021202201 has 4 divisors (see below), whose sum is σ = 212010110912052. Its totient is φ = 212009931492352.

The previous prime is 212010021202129. The next prime is 212010021202219. The reversal of 212010021202201 is 102202120010212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 205943164518400 + 6066856683801 = 14350720^2 + 2463099^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010021202201 - 2⁹ = 212010021201689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212010021202501) 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, 41211340 + ... + 46069453.

It is an arithmetic number, because the mean of its divisors is an integer number (53002527728013).

Almost surely, 2^{212010021202201} is an apocalyptic number.

It is an amenable number.

212010021202201 is a deficient number, since it is larger than the sum of its proper divisors (89709851).

212010021202201 is an equidigital number, since it uses as much as digits as its factorization.

212010021202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89709850.

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

Adding to 212010021202201 its reverse (102202120010212), we get a palindrome (314212141212413).

The spelling of 212010021202201 in words is "two hundred twelve trillion, ten billion, twenty-one million, two hundred two thousand, two hundred one".