212041402 has 8 divisors (see below), whose sum is σ = 319245300. Its totient is φ = 105626304.

The previous prime is 212041397. The next prime is 212041409. The reversal of 212041402 is 204140212.

It can be written as a sum of positive squares in 2 ways, for example, as 195468361 + 16573041 = 13981^2 + 4071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212041409) 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, 196527 + ... + 197602.

Almost surely, 2^212041402 is an apocalyptic number.

212041402 is a deficient number, since it is larger than the sum of its proper divisors (107203898).

212041402 is a wasteful number, since it uses less digits than its factorization.

212041402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394400.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 212041402 is about 14561.6414596707. The cubic root of 212041402 is about 596.3120091328.

Adding to 212041402 its reverse (204140212), we get a palindrome (416181614).

The spelling of 212041402 in words is "two hundred twelve million, forty-one thousand, four hundred two".