221112201020211 has 24 divisors (see below), whose sum is σ = 323434832647680. Its totient is φ = 145538741842416.

The previous prime is 221112201020147. The next prime is 221112201020257. The reversal of 221112201020211 is 112020102211122.

221112201020211 is a `hidden beast` number, since 2 + 211 + 1 + 220 + 1 + 0 + 20 + 211 = 666.

It is not a de Polignac number, because 221112201020211 - 2⁶ = 221112201020147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221112201025211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26341066 + ... + 33705728.

It is an arithmetic number, because the mean of its divisors is an integer number (13476451360320).

Almost surely, 2^{221112201020211} is an apocalyptic number.

221112201020211 is a deficient number, since it is larger than the sum of its proper divisors (102322631627469).

221112201020211 is a wasteful number, since it uses less digits than its factorization.

221112201020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406975 (or 7406972 counting only the distinct ones).

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

Adding to 221112201020211 its reverse (112020102211122), we get a palindrome (333132303231333).

The spelling of 221112201020211 in words is "two hundred twenty-one trillion, one hundred twelve billion, two hundred one million, twenty thousand, two hundred eleven".