212021003133 has 6 divisors (see below), whose sum is σ = 306252560094. Its totient is φ = 141347335416.

The previous prime is 212021003099. The next prime is 212021003143. The reversal of 212021003133 is 331300120212.

It can be written as a sum of positive squares in only one way, i.e., 125807124249 + 86213878884 = 354693^2 + 293622^2 .

It is not a de Polignac number, because 212021003133 - 2⁶ = 212021003069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021003143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11778944610 + ... + 11778944627.

It is an arithmetic number, because the mean of its divisors is an integer number (51042093349).

Almost surely, 2^212021003133 is an apocalyptic number.

It is an amenable number.

212021003133 is a deficient number, since it is larger than the sum of its proper divisors (94231556961).

212021003133 is a wasteful number, since it uses less digits than its factorization.

212021003133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23557889243 (or 23557889240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212021003133 its reverse (331300120212), we get a palindrome (543321123345).

The spelling of 212021003133 in words is "two hundred twelve billion, twenty-one million, three thousand, one hundred thirty-three".