201210121020112 has 20 divisors (see below), whose sum is σ = 389845012267620. Its totient is φ = 100604956563968.

The previous prime is 201210121020067. The next prime is 201210121020163. The reversal of 201210121020112 is 211020121012102.

It can be written as a sum of positive squares in 2 ways, for example, as 140088434122816 + 61121686897296 = 11835896^2 + 7818036^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10881714 + ... + 22821742.

It is an arithmetic number, because the mean of its divisors is an integer number (19492250613381).

Almost surely, 2^{201210121020112} is an apocalyptic number.

It is an amenable number.

201210121020112 is a deficient number, since it is larger than the sum of its proper divisors (188634891247508).

201210121020112 is a wasteful number, since it uses less digits than its factorization.

201210121020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993270 (or 12993264 counting only the distinct ones).

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

Adding to 201210121020112 its reverse (211020121012102), we get a palindrome (412230242032214).

The spelling of 201210121020112 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty-one million, twenty thousand, one hundred twelve".