122021112010001 has 4 divisors (see below), whose sum is σ = 126228736562100. Its totient is φ = 117813487457904.

The previous prime is 122021112009997. The next prime is 122021112010027. The reversal of 122021112010001 is 100010211120221.

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 45184947900625 + 76836164109376 = 6721975^2 + 8765624^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021112010001 - 2² = 122021112009997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122021112015001) 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, 2103812276006 + ... + 2103812276063.

It is an arithmetic number, because the mean of its divisors is an integer number (31557184140525).

Almost surely, 2^{122021112010001} is an apocalyptic number.

It is an amenable number.

122021112010001 is a deficient number, since it is larger than the sum of its proper divisors (4207624552099).

122021112010001 is an equidigital number, since it uses as much as digits as its factorization.

122021112010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207624552098.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122021112010001 its reverse (100010211120221), we get a palindrome (222031323130222).

The spelling of 122021112010001 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twelve million, ten thousand, one".