201212010221 has 8 divisors (see below), whose sum is σ = 205652460384. Its totient is φ = 196819565200.

The previous prime is 201212010193. The next prime is 201212010283. The reversal of 201212010221 is 122010212102.

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 201212010221 - 2³⁰ = 200138268397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201212010196 and 201212010205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212010121) 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, 11992811 + ... + 12009576.

It is an arithmetic number, because the mean of its divisors is an integer number (25706557548).

Almost surely, 2^201212010221 is an apocalyptic number.

It is an amenable number.

201212010221 is a deficient number, since it is larger than the sum of its proper divisors (4440450163).

201212010221 is a wasteful number, since it uses less digits than its factorization.

201212010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24002571.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201212010221 its reverse (122010212102), we get a palindrome (323222222323).

The spelling of 201212010221 in words is "two hundred one billion, two hundred twelve million, ten thousand, two hundred twenty-one".