212102201133 has 20 divisors (see below), whose sum is σ = 316882024668. Its totient is φ = 141384510720.

The previous prime is 212102201107. The next prime is 212102201137. The reversal of 212102201133 is 331102201212.

It can be written as a sum of positive squares in 2 ways, for example, as 107900424324 + 104201776809 = 328482^2 + 322803^2 .

It is not a de Polignac number, because 212102201133 - 2⁹ = 212102200621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212102201137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 541693 + ... + 847133.

Almost surely, 2^212102201133 is an apocalyptic number.

It is an amenable number.

212102201133 is a deficient number, since it is larger than the sum of its proper divisors (104779823535).

212102201133 is an equidigital number, since it uses as much as digits as its factorization.

212102201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314026 (or 314017 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212102201133 its reverse (331102201212), we get a palindrome (543204402345).

The spelling of 212102201133 in words is "two hundred twelve billion, one hundred two million, two hundred one thousand, one hundred thirty-three".