212101533 has 24 divisors (see below), whose sum is σ = 350979200. Its totient is φ = 120909024.

The previous prime is 212101529. The next prime is 212101543. The reversal of 212101533 is 335101212.

212101533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212101533 - 2² = 212101529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23823 + ... + 31491.

Almost surely, 2^212101533 is an apocalyptic number.

It is an amenable number.

212101533 is a deficient number, since it is larger than the sum of its proper divisors (138877667).

212101533 is a wasteful number, since it uses less digits than its factorization.

212101533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121 (or 8118 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 212101533 is about 14563.7060187303. The cubic root of 212101533 is about 596.3683714724.

Adding to 212101533 its reverse (335101212), we get a palindrome (547202745).

The spelling of 212101533 in words is "two hundred twelve million, one hundred one thousand, five hundred thirty-three".