1002211002221 has 16 divisors (see below), whose sum is σ = 1196724738048. Its totient is φ = 827229067200.

The previous prime is 1002211002179. The next prime is 1002211002227. The reversal of 1002211002221 is 1222001122001.

It is a cyclic number.

It is not a de Polignac number, because 1002211002221 - 2⁶ = 1002211002157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002211002196 and 1002211002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002211002227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57437741 + ... + 57455186.

It is an arithmetic number, because the mean of its divisors is an integer number (74795296128).

Almost surely, 2^{1002211002221} is an apocalyptic number.

1002211002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002211002221 is a deficient number, since it is larger than the sum of its proper divisors (194513735827).

1002211002221 is a wasteful number, since it uses less digits than its factorization.

1002211002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114893012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002211002221 its reverse (1222001122001), we get a palindrome (2224212124222).

The spelling of 1002211002221 in words is "one trillion, two billion, two hundred eleven million, two thousand, two hundred twenty-one".