201112201201221 has 12 divisors (see below), whose sum is σ = 290947183083648. Its totient is φ = 133866286332264.

The previous prime is 201112201201201. The next prime is 201112201201267. The reversal of 201112201201221 is 122102102211102.

201112201201221 is a `hidden beast` number, since 20 + 1 + 1 + 1 + 220 + 1 + 201 + 221 = 666.

It is not a de Polignac number, because 201112201201221 - 2⁹ = 201112201200709 is a prime.

It is a super-2 number, since 2×201112201201221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201112201201194 and 201112201201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112201201201) 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, 17376199605 + ... + 17376211178.

It is an arithmetic number, because the mean of its divisors is an integer number (24245598590304).

Almost surely, 2^{201112201201221} is an apocalyptic number.

It is an amenable number.

201112201201221 is a deficient number, since it is larger than the sum of its proper divisors (89834981882427).

201112201201221 is a wasteful number, since it uses less digits than its factorization.

201112201201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34752411432 (or 34752411429 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201112201201221 its reverse (122102102211102), we get a palindrome (323214303412323).

The spelling of 201112201201221 in words is "two hundred one trillion, one hundred twelve billion, two hundred one million, two hundred one thousand, two hundred twenty-one".