211401334 has 16 divisors (see below), whose sum is σ = 334278000. Its totient is φ = 99991584.

The previous prime is 211401319. The next prime is 211401367. The reversal of 211401334 is 433104112.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25092 + ... + 32440.

It is an arithmetic number, because the mean of its divisors is an integer number (20892375).

Almost surely, 2^211401334 is an apocalyptic number.

211401334 is a deficient number, since it is larger than the sum of its proper divisors (122876666).

211401334 is a wasteful number, since it uses less digits than its factorization.

211401334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 211401334 is about 14539.6469695794. The cubic root of 211401334 is about 595.7113954109.

Adding to 211401334 its reverse (433104112), we get a palindrome (644505446).

The spelling of 211401334 in words is "two hundred eleven million, four hundred one thousand, three hundred thirty-four".