212440212202 has 4 divisors (see below), whose sum is σ = 318660318306. Its totient is φ = 106220106100.

The previous prime is 212440212199. The next prime is 212440212227. The reversal of 212440212202 is 202212044212.

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., 112083674521 + 100356537681 = 334789^2 + 316791^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53110053049 + ... + 53110053052.

Almost surely, 2^212440212202 is an apocalyptic number.

212440212202 is a deficient number, since it is larger than the sum of its proper divisors (106220106104).

212440212202 is a wasteful number, since it uses less digits than its factorization.

212440212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106220106103.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212440212202 its reverse (202212044212), we get a palindrome (414652256414).

The spelling of 212440212202 in words is "two hundred twelve billion, four hundred forty million, two hundred twelve thousand, two hundred two".