220222201110021 has 48 divisors (see below), whose sum is σ = 358349800273920. Its totient is φ = 129112494228000.

The previous prime is 220222201110011. The next prime is 220222201110031. The reversal of 220222201110021 is 120011102222022.

It is a happy number.

220222201110021 is a `hidden beast` number, since 220 + 222 + 201 + 1 + 1 + 0 + 0 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (220222201110011) and next prime (220222201110031).

It is not a de Polignac number, because 220222201110021 - 2¹⁰ = 220222201108997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220222201109976 and 220222201110003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222201110011) 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, 5996835 + ... + 21826736.

It is an arithmetic number, because the mean of its divisors is an integer number (7465620839040).

Almost surely, 2^{220222201110021} is an apocalyptic number.

It is an amenable number.

220222201110021 is a deficient number, since it is larger than the sum of its proper divisors (138127599163899).

220222201110021 is a wasteful number, since it uses less digits than its factorization.

220222201110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27826198 (or 27826195 counting only the distinct ones).

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

Adding to 220222201110021 its reverse (120011102222022), we get a palindrome (340233303332043).

The spelling of 220222201110021 in words is "two hundred twenty trillion, two hundred twenty-two billion, two hundred one million, one hundred ten thousand, twenty-one".