122000001001 has 4 divisors (see below), whose sum is σ = 122032374100. Its totient is φ = 121967627904.

The previous prime is 122000000989. The next prime is 122000001017. The reversal of 122000001001 is 100100000221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100100000221 = 13 ⋅7700000017.

It can be written as a sum of positive squares in 2 ways, for example, as 113265229401 + 8734771600 = 336549^2 + 93460^2 .

It is a cyclic number.

It is not a de Polignac number, because 122000001001 - 2²¹ = 121997903849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122000007001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16180896 + ... + 16188433.

It is an arithmetic number, because the mean of its divisors is an integer number (30508093525).

Almost surely, 2^122000001001 is an apocalyptic number.

It is an amenable number.

122000001001 is a deficient number, since it is larger than the sum of its proper divisors (32373099).

122000001001 is an equidigital number, since it uses as much as digits as its factorization.

122000001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32373098.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 122000001001 its reverse (100100000221), we get a palindrome (222100001222).

The spelling of 122000001001 in words is "one hundred twenty-two billion, one thousand, one".