211331303212 has 24 divisors (see below), whose sum is σ = 373160440800. Its totient is φ = 104714324736.

The previous prime is 211331303179. The next prime is 211331303219. The reversal of 211331303212 is 212303133112.

It is not an unprimeable number, because it can be changed into a prime (211331303219) 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, 3203214 + ... + 3268522.

It is an arithmetic number, because the mean of its divisors is an integer number (15548351700).

Almost surely, 2^211331303212 is an apocalyptic number.

It is an amenable number.

211331303212 is a deficient number, since it is larger than the sum of its proper divisors (161829137588).

211331303212 is a wasteful number, since it uses less digits than its factorization.

211331303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72585 (or 72583 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211331303212 its reverse (212303133112), we get a palindrome (423634436324).

The spelling of 211331303212 in words is "two hundred eleven billion, three hundred thirty-one million, three hundred three thousand, two hundred twelve".