220021020001 has 8 divisors (see below), whose sum is σ = 226856402784. Its totient is φ = 213263756160.

The previous prime is 220021019951. The next prime is 220021020017. The reversal of 220021020001 is 100020120022.

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

It is a cyclic number.

It is not a de Polignac number, because 220021020001 - 2¹³ = 220021011809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220021020001.

It is not an unprimeable number, because it can be changed into a prime (220021020301) 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, 19524016 + ... + 19535281.

It is an arithmetic number, because the mean of its divisors is an integer number (28357050348).

Almost surely, 2^220021020001 is an apocalyptic number.

It is an amenable number.

220021020001 is a deficient number, since it is larger than the sum of its proper divisors (6835382783).

220021020001 is a wasteful number, since it uses less digits than its factorization.

220021020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39059471.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 220021020001 its reverse (100020120022), we get a palindrome (320041140023).

The spelling of 220021020001 in words is "two hundred twenty billion, twenty-one million, twenty thousand, one".