10010120221 has 8 divisors (see below), whose sum is σ = 10071424440. Its totient is φ = 9948922368.

The previous prime is 10010120213. The next prime is 10010120299. The reversal of 10010120221 is 12202101001.

It can be written as a sum of positive squares in 4 ways, for example, as 9526736025 + 483384196 = 97605^2 + 21986^2 .

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

It is not a de Polignac number, because 10010120221 - 2³ = 10010120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10010120198 and 10010120207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10010120321) 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, 166465 + ... + 218473.

It is an arithmetic number, because the mean of its divisors is an integer number (1258928055).

Almost surely, 2^10010120221 is an apocalyptic number.

It is an amenable number.

10010120221 is a deficient number, since it is larger than the sum of its proper divisors (61304219).

10010120221 is an equidigital number, since it uses as much as digits as its factorization.

10010120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53183.

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

Adding to 10010120221 its reverse (12202101001), we get a palindrome (22212221222).

The spelling of 10010120221 in words is "ten billion, ten million, one hundred twenty thousand, two hundred twenty-one".