20100212213 has 2 divisors, whose sum is σ = 20100212214. Its totient is φ = 20100212212.

The previous prime is 20100212207. The next prime is 20100212219. The reversal of 20100212213 is 31221200102.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (20100212207) and next prime (20100212219).

It can be written as a sum of positive squares in only one way, i.e., 17736113329 + 2364098884 = 133177^2 + 48622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100212213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20100212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050106106 + 10050106107.

It is an arithmetic number, because the mean of its divisors is an integer number (10050106107).

Almost surely, 2^20100212213 is an apocalyptic number.

It is an amenable number.

20100212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100212213 is an equidigital number, since it uses as much as digits as its factorization.

20100212213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20100212213 its reverse (31221200102), we get a palindrome (51321412315).

The spelling of 20100212213 in words is "twenty billion, one hundred million, two hundred twelve thousand, two hundred thirteen".