201212120021110 has 32 divisors (see below), whose sum is σ = 396394430648832. Its totient is φ = 72929711242080.

The previous prime is 201212120021023. The next prime is 201212120021111. The reversal of 201212120021110 is 11120021212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212120021111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2979121102 + ... + 2979188641.

It is an arithmetic number, because the mean of its divisors is an integer number (12387325957776).

Almost surely, 2^{201212120021110} is an apocalyptic number.

201212120021110 is a deficient number, since it is larger than the sum of its proper divisors (195182310627722).

201212120021110 is a wasteful number, since it uses less digits than its factorization.

201212120021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958310068.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201212120021110 its reverse (11120021212102), we get a palindrome (212332141233212).

The spelling of 201212120021110 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty million, twenty-one thousand, one hundred ten".