211021034 has 16 divisors (see below), whose sum is σ = 383030208. Its totient is φ = 85117632.

The previous prime is 211021009. The next prime is 211021039. The reversal of 211021034 is 430120112.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (211021039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443084 + ... + 443559.

It is an arithmetic number, because the mean of its divisors is an integer number (23939388).

Almost surely, 2^211021034 is an apocalyptic number.

211021034 is a deficient number, since it is larger than the sum of its proper divisors (172009174).

211021034 is a wasteful number, since it uses less digits than its factorization.

211021034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886669.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211021034 is about 14526.5630484296. The cubic root of 211021034 is about 595.3539630565.

Adding to 211021034 its reverse (430120112), we get a palindrome (641141146).

The spelling of 211021034 in words is "two hundred eleven million, twenty-one thousand, thirty-four".