212010121201 has 4 divisors (see below), whose sum is σ = 212020272100. Its totient is φ = 211999970304.

The previous prime is 212010121199. The next prime is 212010121237. The reversal of 212010121201 is 102121010212.

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 122306876176 + 89703245025 = 349724^2 + 299505^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010121201 - 2¹ = 212010121199 is a prime.

It is a super-3 number, since 3×212010121201³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212010121261) 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, 5044056 + ... + 5085913.

It is an arithmetic number, because the mean of its divisors is an integer number (53005068025).

Almost surely, 2^212010121201 is an apocalyptic number.

It is an amenable number.

212010121201 is a deficient number, since it is larger than the sum of its proper divisors (10150899).

212010121201 is a wasteful number, since it uses less digits than its factorization.

212010121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150898.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212010121201 its reverse (102121010212), we get a palindrome (314131131413).

The spelling of 212010121201 in words is "two hundred twelve billion, ten million, one hundred twenty-one thousand, two hundred one".