212520202 has 4 divisors (see below), whose sum is σ = 318780306. Its totient is φ = 106260100.

The previous prime is 212520173. The next prime is 212520223. The reversal of 212520202 is 202025212.

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., 211440681 + 1079521 = 14541^2 + 1039^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53130049 + ... + 53130052.

Almost surely, 2^212520202 is an apocalyptic number.

212520202 is a deficient number, since it is larger than the sum of its proper divisors (106260104).

212520202 is a wasteful number, since it uses less digits than its factorization.

212520202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106260103.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 212520202 is about 14578.0726435287. The cubic root of 212520202 is about 596.7605057546.

Adding to 212520202 its reverse (202025212), we get a palindrome (414545414).

The spelling of 212520202 in words is "two hundred twelve million, five hundred twenty thousand, two hundred two".