11201112012021 has 16 divisors (see below), whose sum is σ = 15783491888640. Its totient is φ = 7046201718000.

The previous prime is 11201112012017. The next prime is 11201112012031. The reversal of 11201112012021 is 12021021110211.

It is a happy number.

It is not a de Polignac number, because 11201112012021 - 2² = 11201112012017 is a prime.

It is a super-2 number, since 2×11201112012021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201112012031) 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, 391441345 + ... + 391469958.

It is an arithmetic number, because the mean of its divisors is an integer number (986468243040).

Almost surely, 2^{11201112012021} is an apocalyptic number.

It is an amenable number.

11201112012021 is a deficient number, since it is larger than the sum of its proper divisors (4582379876619).

11201112012021 is a wasteful number, since it uses less digits than its factorization.

11201112012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782911576.

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

Adding to 11201112012021 its reverse (12021021110211), we get a palindrome (23222133122232).

The spelling of 11201112012021 in words is "eleven trillion, two hundred one billion, one hundred twelve million, twelve thousand, twenty-one".