220101002010021 has 32 divisors (see below), whose sum is σ = 322116546465792. Its totient is φ = 132573893823360.

The previous prime is 220101002009971. The next prime is 220101002010079. The reversal of 220101002010021 is 120010200101022.

It is not a de Polignac number, because 220101002010021 - 2¹⁹ = 220101001485733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220101002009979 and 220101002010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101002010821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 343467916 + ... + 344108138.

It is an arithmetic number, because the mean of its divisors is an integer number (10066142077056).

Almost surely, 2^{220101002010021} is an apocalyptic number.

It is an amenable number.

220101002010021 is a deficient number, since it is larger than the sum of its proper divisors (102015544455771).

220101002010021 is a wasteful number, since it uses less digits than its factorization.

220101002010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704313.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220101002010021 its reverse (120010200101022), we get a palindrome (340111202111043).

The spelling of 220101002010021 in words is "two hundred twenty trillion, one hundred one billion, two million, ten thousand, twenty-one".