201211022100212 has 24 divisors (see below), whose sum is σ = 370911261520800. Its totient is φ = 95243786771616.

The previous prime is 201211022100173. The next prime is 201211022100227. The reversal of 201211022100212 is 212001220112102.

It is a super-2 number, since 2×201211022100212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926243198 + ... + 926460405.

It is an arithmetic number, because the mean of its divisors is an integer number (15454635896700).

Almost surely, 2^{201211022100212} is an apocalyptic number.

It is an amenable number.

201211022100212 is a deficient number, since it is larger than the sum of its proper divisors (169700239420588).

201211022100212 is a wasteful number, since it uses less digits than its factorization.

201211022100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852705055 (or 1852705053 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201211022100212 its reverse (212001220112102), we get a palindrome (413212242212314).

The spelling of 201211022100212 in words is "two hundred one trillion, two hundred eleven billion, twenty-two million, one hundred thousand, two hundred twelve".