220122112021 has 8 divisors (see below), whose sum is σ = 259683229184. Its totient is φ = 182589770160.

The previous prime is 220122112013. The next prime is 220122112031. The reversal of 220122112021 is 120211221022.

It is a happy number.

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

It is not a de Polignac number, because 220122112021 - 2³ = 220122112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220122111986 and 220122112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122112031) 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, 507193590 + ... + 507194023.

It is an arithmetic number, because the mean of its divisors is an integer number (32460403648).

Almost surely, 2^220122112021 is an apocalyptic number.

It is an amenable number.

220122112021 is a deficient number, since it is larger than the sum of its proper divisors (39561117163).

220122112021 is a wasteful number, since it uses less digits than its factorization.

220122112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014387651.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220122112021 its reverse (120211221022), we get a palindrome (340333333043).

The spelling of 220122112021 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred twelve thousand, twenty-one".