2120221112213 has 2 divisors, whose sum is σ = 2120221112214. Its totient is φ = 2120221112212.

The previous prime is 2120221112189. The next prime is 2120221112239. The reversal of 2120221112213 is 3122111220212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1942324430929 + 177896681284 = 1393673^2 + 421778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120221112213 - 2²² = 2120216917909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120221112293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060110556106 + 1060110556107.

It is an arithmetic number, because the mean of its divisors is an integer number (1060110556107).

Almost surely, 2^{2120221112213} is an apocalyptic number.

It is an amenable number.

2120221112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120221112213 is an equidigital number, since it uses as much as digits as its factorization.

2120221112213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2120221112213 its reverse (3122111220212), we get a palindrome (5242332332425).

The spelling of 2120221112213 in words is "two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twelve thousand, two hundred thirteen".