211231110010 has 16 divisors (see below), whose sum is σ = 380224897416. Its totient is φ = 84490466368.

The previous prime is 211231110007. The next prime is 211231110011. The reversal of 211231110010 is 10011132112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72526260249 + 138704849761 = 269307^2 + 372431^2 .

It is not an unprimeable number, because it can be changed into a prime (211231110011) 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, 248784 + ... + 695956.

Almost surely, 2^211231110010 is an apocalyptic number.

211231110010 is a deficient number, since it is larger than the sum of its proper divisors (168993787406).

211231110010 is a wasteful number, since it uses less digits than its factorization.

211231110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494417.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211231110010 its reverse (10011132112), we get a palindrome (221242242122).

The spelling of 211231110010 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred ten thousand, ten".