220221021011 has 4 divisors (see below), whose sum is σ = 220259983152. Its totient is φ = 220182058872.

The previous prime is 220221020983. The next prime is 220221021017. The reversal of 220221021011 is 110120122022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220221021011 - 2³⁴ = 203041151827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220221021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19472591 + ... + 19483896.

It is an arithmetic number, because the mean of its divisors is an integer number (55064995788).

Almost surely, 2^220221021011 is an apocalyptic number.

220221021011 is a deficient number, since it is larger than the sum of its proper divisors (38962141).

220221021011 is an equidigital number, since it uses as much as digits as its factorization.

220221021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38962140.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220221021011 its reverse (110120122022), we get a palindrome (330341143033).

The spelling of 220221021011 in words is "two hundred twenty billion, two hundred twenty-one million, twenty-one thousand, eleven".