201011112102021 has 12 divisors (see below), whose sum is σ = 290217226940928. Its totient is φ = 123699145908624.

The previous prime is 201011112101993. The next prime is 201011112102113. The reversal of 201011112102021 is 120201211110102.

It is a happy number.

It is not a de Polignac number, because 201011112102021 - 2⁹ = 201011112101509 is a prime.

It is a super-2 number, since 2×201011112102021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011112102221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198235810245 + ... + 198235811258.

It is an arithmetic number, because the mean of its divisors is an integer number (24184768911744).

Almost surely, 2^{201011112102021} is an apocalyptic number.

It is an amenable number.

201011112102021 is a deficient number, since it is larger than the sum of its proper divisors (89206114838907).

201011112102021 is a wasteful number, since it uses less digits than its factorization.

201011112102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396471621532 (or 396471621519 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201011112102021 its reverse (120201211110102), we get a palindrome (321212323212123).

The spelling of 201011112102021 in words is "two hundred one trillion, eleven billion, one hundred twelve million, one hundred two thousand, twenty-one".