222011020221 has 8 divisors (see below), whose sum is σ = 296020037664. Its totient is φ = 148004674800.

The previous prime is 222011020211. The next prime is 222011020223. The reversal of 222011020221 is 122020110222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222011020221 - 2⁶ = 222011020157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222011020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011020223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465351 + ... + 812756.

It is an arithmetic number, because the mean of its divisors is an integer number (37002504708).

Almost surely, 2^222011020221 is an apocalyptic number.

It is an amenable number.

222011020221 is a deficient number, since it is larger than the sum of its proper divisors (74009017443).

222011020221 is a wasteful number, since it uses less digits than its factorization.

222011020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336011.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222011020221 its reverse (122020110222), we get a palindrome (344031130443).

Subtracting from 222011020221 its reverse (122020110222), we obtain a palindrome (99990909999).

The spelling of 222011020221 in words is "two hundred twenty-two billion, eleven million, twenty thousand, two hundred twenty-one".