10101220109 has 8 divisors (see below), whose sum is σ = 10586842560. Its totient is φ = 9619467616.

The previous prime is 10101220099. The next prime is 10101220111. The reversal of 10101220109 is 90102210101.

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 10101220109 - 2⁸ = 10101219853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101220309) 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, 962144 + ... + 972585.

It is an arithmetic number, because the mean of its divisors is an integer number (1323355320).

Almost surely, 2^10101220109 is an apocalyptic number.

It is an amenable number.

10101220109 is a deficient number, since it is larger than the sum of its proper divisors (485622451).

10101220109 is a wasteful number, since it uses less digits than its factorization.

10101220109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934979.

The product of its (nonzero) digits is 36, while the sum is 17.

It can be divided in two parts, 101012 and 20109, that added together give a palindrome (121121).

The spelling of 10101220109 in words is "ten billion, one hundred one million, two hundred twenty thousand, one hundred nine".