220000032021 has 32 divisors (see below), whose sum is σ = 367137451008. Its totient is φ = 113841008640.

The previous prime is 220000032011. The next prime is 220000032041. The reversal of 220000032021 is 120230000022.

It is not a de Polignac number, because 220000032021 - 2¹¹ = 220000029973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220000031988 and 220000032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000032011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1793515 + ... + 1912248.

It is an arithmetic number, because the mean of its divisors is an integer number (11473045344).

Almost surely, 2^220000032021 is an apocalyptic number.

220000032021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220000032021 is a deficient number, since it is larger than the sum of its proper divisors (147137418987).

220000032021 is a wasteful number, since it uses less digits than its factorization.

220000032021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706041.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 220000032021 its reverse (120230000022), we get a palindrome (340230032043).

The spelling of 220000032021 in words is "two hundred twenty billion, thirty-two thousand, twenty-one".