10100120221 has 8 divisors (see below), whose sum is σ = 10257702624. Its totient is φ = 9942738960.

The previous prime is 10100120209. The next prime is 10100120299. The reversal of 10100120221 is 12202100101.

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 10100120221 - 2⁹ = 10100119709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10100120198 and 10100120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100130221) 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, 52551 + ... + 151531.

It is an arithmetic number, because the mean of its divisors is an integer number (1282212828).

Almost surely, 2^10100120221 is an apocalyptic number.

It is an amenable number.

10100120221 is a deficient number, since it is larger than the sum of its proper divisors (157582403).

10100120221 is an equidigital number, since it uses as much as digits as its factorization.

10100120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100571.

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

Adding to 10100120221 its reverse (12202100101), we get a palindrome (22302220322).

It can be divided in two parts, 10100 and 120221, that added together give a 4-th power (130321 = 19⁴).

The spelling of 10100120221 in words is "ten billion, one hundred million, one hundred twenty thousand, two hundred twenty-one".