10211002221 has 16 divisors (see below), whose sum is σ = 15980153984. Its totient is φ = 5677159104.

The previous prime is 10211002187. The next prime is 10211002223. The reversal of 10211002221 is 12220011201.

It is not a de Polignac number, because 10211002221 - 2⁶ = 10211002157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10211002197 and 10211002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211002223) 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, 6570010 + ... + 6571563.

It is an arithmetic number, because the mean of its divisors is an integer number (998759624).

Almost surely, 2^10211002221 is an apocalyptic number.

It is an amenable number.

10211002221 is a deficient number, since it is larger than the sum of its proper divisors (5769151763).

10211002221 is a wasteful number, since it uses less digits than its factorization.

10211002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141620.

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

Adding to 10211002221 its reverse (12220011201), we get a palindrome (22431013422).

The spelling of 10211002221 in words is "ten billion, two hundred eleven million, two thousand, two hundred twenty-one".