212021303042 has 8 divisors (see below), whose sum is σ = 319396899276. Its totient is φ = 105555669952.

The previous prime is 212021303009. The next prime is 212021303057. The reversal of 212021303042 is 240303120212.

It can be written as a sum of positive squares in 2 ways, for example, as 209250438721 + 2770864321 = 457439^2 + 52639^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227490203 + ... + 227491134.

Almost surely, 2^212021303042 is an apocalyptic number.

212021303042 is a deficient number, since it is larger than the sum of its proper divisors (107375596234).

212021303042 is a wasteful number, since it uses less digits than its factorization.

212021303042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454981572.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212021303042 its reverse (240303120212), we get a palindrome (452324423254).

The spelling of 212021303042 in words is "two hundred twelve billion, twenty-one million, three hundred three thousand, forty-two".