122110100001 has 24 divisors (see below), whose sum is σ = 181167394304. Its totient is φ = 79198210080.

The previous prime is 122110099997. The next prime is 122110100017. The reversal of 122110100001 is 100001011221.

It is a happy number.

It is not a de Polignac number, because 122110100001 - 2² = 122110099997 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122110100041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5593830 + ... + 5615616.

Almost surely, 2^122110100001 is an apocalyptic number.

It is an amenable number.

122110100001 is a deficient number, since it is larger than the sum of its proper divisors (59057294303).

122110100001 is a wasteful number, since it uses less digits than its factorization.

122110100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38661 (or 38658 counting only the distinct ones).

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

Adding to 122110100001 its reverse (100001011221), we get a palindrome (222111111222).

It can be divided in two parts, 122110 and 100001, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 122110100001 in words is "one hundred twenty-two billion, one hundred ten million, one hundred thousand, one".