220101102021 has 32 divisors (see below), whose sum is σ = 306484288000. Its totient is φ = 140374840320.

The previous prime is 220101101981. The next prime is 220101102029. The reversal of 220101102021 is 120201101022.

220101102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220101102021 - 2⁷ = 220101101893 is a prime.

It is a super-2 number, since 2×220101102021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220101101988 and 220101102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101102029) 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, 2061255 + ... + 2165403.

It is an arithmetic number, because the mean of its divisors is an integer number (9577634000).

Almost surely, 2^220101102021 is an apocalyptic number.

It is an amenable number.

220101102021 is a deficient number, since it is larger than the sum of its proper divisors (86383185979).

220101102021 is a wasteful number, since it uses less digits than its factorization.

220101102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104509.

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

Adding to 220101102021 its reverse (120201101022), we get a palindrome (340302203043).

Subtracting from 220101102021 its reverse (120201101022), we obtain a palindrome (99900000999).

The spelling of 220101102021 in words is "two hundred twenty billion, one hundred one million, one hundred two thousand, twenty-one".