222011320221 has 12 divisors (see below), whose sum is σ = 331027632000. Its totient is φ = 143233109640.

The previous prime is 222011320207. The next prime is 222011320229. The reversal of 222011320221 is 122023110222.

It is not a de Polignac number, because 222011320221 - 2¹⁰ = 222011319197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222011320194 and 222011320203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011320229) 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, 397869471 + ... + 397870028.

It is an arithmetic number, because the mean of its divisors is an integer number (27585636000).

Almost surely, 2^222011320221 is an apocalyptic number.

It is an amenable number.

222011320221 is a deficient number, since it is larger than the sum of its proper divisors (109016311779).

222011320221 is a wasteful number, since it uses less digits than its factorization.

222011320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795739536 (or 795739533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 222011320221 its reverse (122023110222), we get a palindrome (344034430443).

The spelling of 222011320221 in words is "two hundred twenty-two billion, eleven million, three hundred twenty thousand, two hundred twenty-one".