212302042 has 4 divisors (see below), whose sum is σ = 318453066. Its totient is φ = 106151020.

The previous prime is 212302037. The next prime is 212302049. The reversal of 212302042 is 240203212.

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

It can be written as a sum of positive squares in only one way, i.e., 211964481 + 337561 = 14559^2 + 581^2 .

It is not an unprimeable number, because it can be changed into a prime (212302049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53075509 + ... + 53075512.

Almost surely, 2^212302042 is an apocalyptic number.

212302042 is a deficient number, since it is larger than the sum of its proper divisors (106151024).

212302042 is a wasteful number, since it uses less digits than its factorization.

212302042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106151023.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212302042 is about 14570.5882516802. The cubic root of 212302042 is about 596.5562367891.

Adding to 212302042 its reverse (240203212), we get a palindrome (452505254).

The spelling of 212302042 in words is "two hundred twelve million, three hundred two thousand, forty-two".