211420213402 has 8 divisors (see below), whose sum is σ = 317140703316. Its totient is φ = 105706645632.

The previous prime is 211420213399. The next prime is 211420213447. The reversal of 211420213402 is 204312024112.

211420213402 is digitally balanced in base 3, 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 2 ways, for example, as 174647932281 + 36772281121 = 417909^2 + 191761^2 .

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, 1653493 + ... + 1776760.

Almost surely, 2^211420213402 is an apocalyptic number.

211420213402 is a deficient number, since it is larger than the sum of its proper divisors (105720489914).

211420213402 is a wasteful number, since it uses less digits than its factorization.

211420213402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461072.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 211420213402 its reverse (204312024112), we get a palindrome (415732237514).

The spelling of 211420213402 in words is "two hundred eleven billion, four hundred twenty million, two hundred thirteen thousand, four hundred two".