10220010121 has 8 divisors (see below), whose sum is σ = 10265826824. Its totient is φ = 10174222080.

The previous prime is 10220010109. The next prime is 10220010127. The reversal of 10220010121 is 12101002201.

It can be written as a sum of positive squares in 4 ways, for example, as 8211984400 + 2008025721 = 90620^2 + 44811^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10220010121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220010098 and 10220010107.

It is not an unprimeable number, because it can be changed into a prime (10220010127) 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, 1045171 + ... + 1054903.

It is an arithmetic number, because the mean of its divisors is an integer number (1283228353).

Almost surely, 2^10220010121 is an apocalyptic number.

It is an amenable number.

10220010121 is a deficient number, since it is larger than the sum of its proper divisors (45816703).

10220010121 is an equidigital number, since it uses as much as digits as its factorization.

10220010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14331.

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

Adding to 10220010121 its reverse (12101002201), we get a palindrome (22321012322).

The spelling of 10220010121 in words is "ten billion, two hundred twenty million, ten thousand, one hundred twenty-one".