201211212102 has 32 divisors (see below), whose sum is σ = 417421961088. Its totient is φ = 64613215296.

The previous prime is 201211212077. The next prime is 201211212157. The reversal of 201211212102 is 201212112102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5322868 + ... + 5360535.

It is an arithmetic number, because the mean of its divisors is an integer number (13044436284).

Almost surely, 2^201211212102 is an apocalyptic number.

201211212102 is an abundant number, since it is smaller than the sum of its proper divisors (216210748986).

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

201211212102 is a wasteful number, since it uses less digits than its factorization.

201211212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10683524.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201211212102 its reverse (201212112102), we get a palindrome (402423324204).

The spelling of 201211212102 in words is "two hundred one billion, two hundred eleven million, two hundred twelve thousand, one hundred two".