212402083 has 4 divisors (see below), whose sum is σ = 223581160. Its totient is φ = 201223008.

The previous prime is 212402027. The next prime is 212402093. The reversal of 212402083 is 380204212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212402083 - 2¹⁷ = 212271011 is a prime.

It is a super-3 number, since 3×212402083³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212402023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5589510 + ... + 5589547.

It is an arithmetic number, because the mean of its divisors is an integer number (55895290).

Almost surely, 2^212402083 is an apocalyptic number.

212402083 is a deficient number, since it is larger than the sum of its proper divisors (11179077).

212402083 is a wasteful number, since it uses less digits than its factorization.

212402083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11179076.

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

The square root of 212402083 is about 14574.0208247415. The cubic root of 212402083 is about 596.6499251811.

Adding to 212402083 its reverse (380204212), we get a palindrome (592606295).

The spelling of 212402083 in words is "two hundred twelve million, four hundred two thousand, eighty-three".