220012020001021 has 8 divisors (see below), whose sum is σ = 220550660111360. Its totient is φ = 219473383371552.

The previous prime is 220012020001001. The next prime is 220012020001061. The reversal of 220012020001021 is 120100020210022.

It is a happy number.

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 220012020001021 - 2¹⁷ = 220012019869949 is a prime.

It is a super-3 number, since 3×220012020001021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220012020000992 and 220012020001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012020001001) 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, 163766596 + ... + 165104578.

It is an arithmetic number, because the mean of its divisors is an integer number (27568832513920).

Almost surely, 2^{220012020001021} is an apocalyptic number.

It is an amenable number.

220012020001021 is a deficient number, since it is larger than the sum of its proper divisors (538640110339).

220012020001021 is a wasteful number, since it uses less digits than its factorization.

220012020001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740435.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220012020001021 its reverse (120100020210022), we get a palindrome (340112040211043).

The spelling of 220012020001021 in words is "two hundred twenty trillion, twelve billion, twenty million, one thousand, twenty-one".