212002204261 has 2 divisors, whose sum is σ = 212002204262. Its totient is φ = 212002204260.

The previous prime is 212002204163. The next prime is 212002204279. The reversal of 212002204261 is 162402200212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211145764036 + 856440225 = 459506^2 + 29265^2 .

It is a cyclic number.

It is not a de Polignac number, because 212002204261 - 2⁷ = 212002204133 is a prime.

It is a super-2 number, since 2×212002204261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212002204361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001102130 + 106001102131.

It is an arithmetic number, because the mean of its divisors is an integer number (106001102131).

Almost surely, 2^212002204261 is an apocalyptic number.

It is an amenable number.

212002204261 is a deficient number, since it is larger than the sum of its proper divisors (1).

212002204261 is an equidigital number, since it uses as much as digits as its factorization.

212002204261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 212002204261 its reverse (162402200212), we get a palindrome (374404404473).

The spelling of 212002204261 in words is "two hundred twelve billion, two million, two hundred four thousand, two hundred sixty-one".