2021000220231 has 16 divisors (see below), whose sum is σ = 2745721812960. Its totient is φ = 1321809981440.

The previous prime is 2021000220229. The next prime is 2021000220241. The reversal of 2021000220231 is 1320220001202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2021000220231 - 2¹ = 2021000220229 is a prime.

It is a super-2 number, since 2×2021000220231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021000220231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021000220241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1601875 + ... + 2570603.

It is an arithmetic number, because the mean of its divisors is an integer number (171607613310).

Almost surely, 2^{2021000220231} is an apocalyptic number.

2021000220231 is a deficient number, since it is larger than the sum of its proper divisors (724721592729).

2021000220231 is a wasteful number, since it uses less digits than its factorization.

2021000220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981906.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 2021000220231 its reverse (1320220001202), we get a palindrome (3341220221433).

The spelling of 2021000220231 in words is "two trillion, twenty-one billion, two hundred twenty thousand, two hundred thirty-one".