10100201221 has 8 divisors (see below), whose sum is σ = 11029464864. Its totient is φ = 9172781520.

The previous prime is 10100201219. The next prime is 10100201227. The reversal of 10100201221 is 12210200101.

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 10100201221 - 2¹ = 10100201219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10100201198 and 10100201207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100201227) 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, 449515 + ... + 471448.

It is an arithmetic number, because the mean of its divisors is an integer number (1378683108).

Almost surely, 2^10100201221 is an apocalyptic number.

10100201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10100201221 is a deficient number, since it is larger than the sum of its proper divisors (929263643).

10100201221 is an equidigital number, since it uses as much as digits as its factorization.

10100201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921971.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10100201221 its reverse (12210200101), we get a palindrome (22310401322).

The spelling of 10100201221 in words is "ten billion, one hundred million, two hundred one thousand, two hundred twenty-one".