211231223023212 has 54 divisors (see below), whose sum is σ = 621120381990108. Its totient is φ = 60351778006128.

The previous prime is 211231223023199. The next prime is 211231223023217. The reversal of 211231223023212 is 212320322132112.

211231223023212 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 31 + 2 + 2 + 302 + 321 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (211231223023217) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 59872793878 + ... + 59872797405.

Almost surely, 2^{211231223023212} is an apocalyptic number.

It is an amenable number.

211231223023212 is an abundant number, since it is smaller than the sum of its proper divisors (409889158966896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211231223023212 is a wasteful number, since it uses less digits than its factorization.

211231223023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119745591307 (or 119745591295 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 211231223023212 its reverse (212320322132112), we get a palindrome (423551545155324).

The spelling of 211231223023212 in words is "two hundred eleven trillion, two hundred thirty-one billion, two hundred twenty-three million, twenty-three thousand, two hundred twelve".