122021100102001 has 4 divisors (see below), whose sum is σ = 122029870409892. Its totient is φ = 122012329794112.

The previous prime is 122021100101983. The next prime is 122021100102007. The reversal of 122021100102001 is 100201001120221.

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 27828252012001 + 94192848090000 = 5275249^2 + 9705300^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021100102001 - 2²¹ = 122021098004849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122021100102007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4385133076 + ... + 4385160901.

It is an arithmetic number, because the mean of its divisors is an integer number (30507467602473).

Almost surely, 2^{122021100102001} is an apocalyptic number.

It is an amenable number.

122021100102001 is a deficient number, since it is larger than the sum of its proper divisors (8770307891).

122021100102001 is an equidigital number, since it uses as much as digits as its factorization.

122021100102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770307890.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122021100102001 its reverse (100201001120221), we get a palindrome (222222101222222).

The spelling of 122021100102001 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred million, one hundred two thousand, one".