213203221122233 has 2 divisors, whose sum is σ = 213203221122234. Its totient is φ = 213203221122232.

The previous prime is 213203221122223. The next prime is 213203221122253. The reversal of 213203221122233 is 332221122302312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213179506046224 + 23715076009 = 14600668^2 + 153997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213203221122233 is a prime.

It is a super-2 number, since 2×213203221122233² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213203221122196 and 213203221122205.

It is not a weakly prime, because it can be changed into another prime (213203221122223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106601610561116 + 106601610561117.

It is an arithmetic number, because the mean of its divisors is an integer number (106601610561117).

Almost surely, 2^{213203221122233} is an apocalyptic number.

It is an amenable number.

213203221122233 is a deficient number, since it is larger than the sum of its proper divisors (1).

213203221122233 is an equidigital number, since it uses as much as digits as its factorization.

213203221122233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 213203221122233 its reverse (332221122302312), we get a palindrome (545424343424545).

The spelling of 213203221122233 in words is "two hundred thirteen trillion, two hundred three billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred thirty-three".