10201221211 has 8 divisors (see below), whose sum is σ = 10803631104. Its totient is φ = 9612051240.

The previous prime is 10201221203. The next prime is 10201221223. The reversal of 10201221211 is 11212210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10201221211 - 2³ = 10201221203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201221191 and 10201221200.

It is not an unprimeable number, because it can be changed into a prime (10201221241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308395 + ... + 3311476.

It is an arithmetic number, because the mean of its divisors is an integer number (1350453888).

Almost surely, 2^10201221211 is an apocalyptic number.

10201221211 is a deficient number, since it is larger than the sum of its proper divisors (602409893).

10201221211 is an equidigital number, since it uses as much as digits as its factorization.

10201221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6619961.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10201221211 its reverse (11212210201), we get a palindrome (21413431412).

The spelling of 10201221211 in words is "ten billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".