122001100212005 has 16 divisors (see below), whose sum is σ = 167316115950720. Its totient is φ = 83657736601152.

The previous prime is 122001100211983. The next prime is 122001100212031. The reversal of 122001100212005 is 500212001100221.

It is not a de Polignac number, because 122001100212005 - 2¹⁶ = 122001100146469 is a prime.

It is a super-2 number, since 2×122001100212005² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16851107 + ... + 22977423.

It is an arithmetic number, because the mean of its divisors is an integer number (10457257246920).

Almost surely, 2^{122001100212005} is an apocalyptic number.

It is an amenable number.

122001100212005 is a deficient number, since it is larger than the sum of its proper divisors (45315015738715).

122001100212005 is an equidigital number, since it uses as much as digits as its factorization.

122001100212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6695308.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 122001100212005 its reverse (500212001100221), we get a palindrome (622213101312226).

The spelling of 122001100212005 in words is "one hundred twenty-two trillion, one billion, one hundred million, two hundred twelve thousand, five".