122011100010001 has 4 divisors (see below), whose sum is σ = 122011234383600. Its totient is φ = 122010965636404.

The previous prime is 122011100009987. The next prime is 122011100010011. The reversal of 122011100010001 is 100010001110221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122011100010001 - 2²⁵ = 122011066455569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122011100010001.

It is not an unprimeable number, because it can be changed into a prime (122011100010011) 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, 65815471 + ... + 67643908.

It is an arithmetic number, because the mean of its divisors is an integer number (30502808595900).

Almost surely, 2^{122011100010001} is an apocalyptic number.

It is an amenable number.

122011100010001 is a deficient number, since it is larger than the sum of its proper divisors (134373599).

122011100010001 is an equidigital number, since it uses as much as digits as its factorization.

122011100010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134373598.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 122011100010001 its reverse (100010001110221), we get a palindrome (222021101120222).

The spelling of 122011100010001 in words is "one hundred twenty-two trillion, eleven billion, one hundred million, ten thousand, one".