122212112112001 has 4 divisors (see below), whose sum is σ = 122256894860100. Its totient is φ = 122167329363904.

The previous prime is 122212112111861. The next prime is 122212112112011. The reversal of 122212112112001 is 100211211212221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109555053591025 + 12657058520976 = 10466855^2 + 3557676^2 .

It is a cyclic number.

It is not a de Polignac number, because 122212112112001 - 2⁹ = 122212112111489 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 122212112112001.

It is not an unprimeable number, because it can be changed into a prime (122212112112011) 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, 22391369956 + ... + 22391375413.

It is an arithmetic number, because the mean of its divisors is an integer number (30564223715025).

Almost surely, 2^{122212112112001} is an apocalyptic number.

It is an amenable number.

122212112112001 is a deficient number, since it is larger than the sum of its proper divisors (44782748099).

122212112112001 is an equidigital number, since it uses as much as digits as its factorization.

122212112112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44782748098.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122212112112001 its reverse (100211211212221), we get a palindrome (222423323324222).

The spelling of 122212112112001 in words is "one hundred twenty-two trillion, two hundred twelve billion, one hundred twelve million, one hundred twelve thousand, one".