212311426 has 4 divisors (see below), whose sum is σ = 318467142. Its totient is φ = 106155712.

The previous prime is 212311417. The next prime is 212311447. The reversal of 212311426 is 624113212.

212311426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 157477401 + 54834025 = 12549^2 + 7405^2 .

It is a super-2 number, since 2×212311426² = 90152283220306952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212311397 and 212311406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53077855 + ... + 53077858.

Almost surely, 2^212311426 is an apocalyptic number.

212311426 is a deficient number, since it is larger than the sum of its proper divisors (106155716).

212311426 is a wasteful number, since it uses less digits than its factorization.

212311426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106155715.

The product of its digits is 576, while the sum is 22.

The square root of 212311426 is about 14570.9102666923. The cubic root of 212311426 is about 596.5650261554.

Adding to 212311426 its reverse (624113212), we get a palindrome (836424638).

The spelling of 212311426 in words is "two hundred twelve million, three hundred eleven thousand, four hundred twenty-six".