211421050 has 24 divisors (see below), whose sum is σ = 394797276. Its totient is φ = 84234240.

The previous prime is 211421033. The next prime is 211421053. The reversal of 211421050 is 50124112.

211421050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 187224489 + 24196561 = 13683^2 + 4919^2 .

It is not an unprimeable number, because it can be changed into a prime (211421053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4624 + ... + 21076.

Almost surely, 2^211421050 is an apocalyptic number.

211421050 is a deficient number, since it is larger than the sum of its proper divisors (183376226).

211421050 is a wasteful number, since it uses less digits than its factorization.

211421050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16722 (or 16717 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 211421050 is about 14540.3249619807. The cubic root of 211421050 is about 595.7299141852.

Adding to 211421050 its reverse (50124112), we get a palindrome (261545162).

The spelling of 211421050 in words is "two hundred eleven million, four hundred twenty-one thousand, fifty".