212201222120213 has 4 divisors (see below), whose sum is σ = 216716141739840. Its totient is φ = 207686302500588.

The previous prime is 212201222120189. The next prime is 212201222120249. The reversal of 212201222120213 is 312021222102212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212201222120213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201222120263) 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, 2257459809743 + ... + 2257459809836.

It is an arithmetic number, because the mean of its divisors is an integer number (54179035434960).

Almost surely, 2^{212201222120213} is an apocalyptic number.

It is an amenable number.

212201222120213 is a deficient number, since it is larger than the sum of its proper divisors (4514919619627).

212201222120213 is an equidigital number, since it uses as much as digits as its factorization.

212201222120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514919619626.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212201222120213 its reverse (312021222102212), we get a palindrome (524222444222425).

The spelling of 212201222120213 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred thirteen".