222200011201221 has 48 divisors (see below), whose sum is σ = 338233057658496. Its totient is φ = 140288431523328.

The previous prime is 222200011201183. The next prime is 222200011201351. The reversal of 222200011201221 is 122102110002222.

It is a happy number.

222200011201221 is a `hidden beast` number, since 22 + 220 + 0 + 0 + 1 + 1 + 201 + 221 = 666.

It is not a de Polignac number, because 222200011201221 - 2⁹ = 222200011200709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222200011201194 and 222200011201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200011201921) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35965801 + ... + 41688593.

It is an arithmetic number, because the mean of its divisors is an integer number (7046522034552).

Almost surely, 2^{222200011201221} is an apocalyptic number.

It is an amenable number.

222200011201221 is a deficient number, since it is larger than the sum of its proper divisors (116033046457275).

222200011201221 is a wasteful number, since it uses less digits than its factorization.

222200011201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724682 (or 5724679 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222200011201221 its reverse (122102110002222), we get a palindrome (344302121203443).

The spelling of 222200011201221 in words is "two hundred twenty-two trillion, two hundred billion, eleven million, two hundred one thousand, two hundred twenty-one".