2201022222021 has 48 divisors (see below), whose sum is σ = 3929019554304. Its totient is φ = 1158556995072.

The previous prime is 2201022222013. The next prime is 2201022222043. The reversal of 2201022222021 is 1202222201022.

2201022222021 is a `hidden beast` number, since 2 + 201 + 0 + 222 + 220 + 21 = 666.

It is not a de Polignac number, because 2201022222021 - 2³ = 2201022222013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201022221985 and 2201022222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201022222001) 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 47 ways as a sum of consecutive naturals, for example, 21812530 + ... + 21913203.

It is an arithmetic number, because the mean of its divisors is an integer number (81854574048).

Almost surely, 2^{2201022222021} is an apocalyptic number.

2201022222021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2201022222021 is a deficient number, since it is larger than the sum of its proper divisors (1727997332283).

2201022222021 is a wasteful number, since it uses less digits than its factorization.

2201022222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43725810 (or 43725807 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2201022222021 its reverse (1202222201022), we get a palindrome (3403244423043).

The spelling of 2201022222021 in words is "two trillion, two hundred one billion, twenty-two million, two hundred twenty-two thousand, twenty-one".