213202222061 has 2 divisors, whose sum is σ = 213202222062. Its totient is φ = 213202222060.

The previous prime is 213202221977. The next prime is 213202222081. The reversal of 213202222061 is 160222202312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213057019561 + 145202500 = 461581^2 + 12050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213202222061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213202222081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106601111030 + 106601111031.

It is an arithmetic number, because the mean of its divisors is an integer number (106601111031).

Almost surely, 2^213202222061 is an apocalyptic number.

It is an amenable number.

213202222061 is a deficient number, since it is larger than the sum of its proper divisors (1).

213202222061 is an equidigital number, since it uses as much as digits as its factorization.

213202222061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 213202222061 its reverse (160222202312), we get a palindrome (373424424373).

The spelling of 213202222061 in words is "two hundred thirteen billion, two hundred two million, two hundred twenty-two thousand, sixty-one".