220022021021 has 8 divisors (see below), whose sum is σ = 250459850304. Its totient is φ = 191323496320.

The previous prime is 220022020993. The next prime is 220022021029. The reversal of 220022021021 is 120120220022.

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

It is not a de Polignac number, because 220022021021 - 2¹⁸ = 220021758877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220022020987 and 220022021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022021029) 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, 434825876 + ... + 434826381.

It is an arithmetic number, because the mean of its divisors is an integer number (31307481288).

Almost surely, 2^220022021021 is an apocalyptic number.

It is an amenable number.

220022021021 is a deficient number, since it is larger than the sum of its proper divisors (30437829283).

220022021021 is a wasteful number, since it uses less digits than its factorization.

220022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869652291.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220022021021 its reverse (120120220022), we get a palindrome (340142241043).

The spelling of 220022021021 in words is "two hundred twenty billion, twenty-two million, twenty-one thousand, twenty-one".