201211222102 has 24 divisors (see below), whose sum is σ = 331782066000. Its totient is φ = 91450553040.

The previous prime is 201211222081. The next prime is 201211222153. The reversal of 201211222102 is 201222112102.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2800524 + ... + 2871472.

It is an arithmetic number, because the mean of its divisors is an integer number (13824252750).

Almost surely, 2^201211222102 is an apocalyptic number.

201211222102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201211222102 is a deficient number, since it is larger than the sum of its proper divisors (130570843898).

201211222102 is a wasteful number, since it uses less digits than its factorization.

201211222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82692 (or 82681 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201211222102 its reverse (201222112102), we get a palindrome (402433334204).

Subtracting 201211222102 from its reverse (201222112102), we obtain a square (10890000 = 3300²).

The spelling of 201211222102 in words is "two hundred one billion, two hundred eleven million, two hundred twenty-two thousand, one hundred two".