10122110001 has 20 divisors (see below), whose sum is σ = 15472331952. Its totient is φ = 6591139128.

The previous prime is 10122109981. The next prime is 10122110057. The reversal of 10122110001 is 10001122101.

It is a happy number.

It is not a de Polignac number, because 10122110001 - 2⁹ = 10122109489 is a prime.

It is a super-2 number, since 2×10122110001² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10122110081) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1449591 + ... + 1456556.

Almost surely, 2^10122110001 is an apocalyptic number.

It is an amenable number.

10122110001 is a deficient number, since it is larger than the sum of its proper divisors (5350221951).

10122110001 is an equidigital number, since it uses as much as digits as its factorization.

10122110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906202 (or 2906193 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10122110001 its reverse (10001122101), we get a palindrome (20123232102).

The spelling of 10122110001 in words is "ten billion, one hundred twenty-two million, one hundred ten thousand, one".