212201312211 has 12 divisors (see below), whose sum is σ = 350300578992. Its totient is φ = 121257892656.

The previous prime is 212201312209. The next prime is 212201312221. The reversal of 212201312211 is 112213102212.

212201312211 is a `hidden beast` number, since 212 + 201 + 31 + 221 + 1 = 666.

It is not a de Polignac number, because 212201312211 - 2¹ = 212201312209 is a prime.

It is a super-3 number, since 3×212201312211³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (212201312221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1684137336 + ... + 1684137461.

It is an arithmetic number, because the mean of its divisors is an integer number (29191714916).

Almost surely, 2^212201312211 is an apocalyptic number.

212201312211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212201312211 is a deficient number, since it is larger than the sum of its proper divisors (138099266781).

212201312211 is a wasteful number, since it uses less digits than its factorization.

212201312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368274810 (or 3368274807 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212201312211 its reverse (112213102212), we get a palindrome (324414414423).

The spelling of 212201312211 in words is "two hundred twelve billion, two hundred one million, three hundred twelve thousand, two hundred eleven".