120001102222021 has 2 divisors, whose sum is σ = 120001102222022. Its totient is φ = 120001102222020.

The previous prime is 120001102222009. The next prime is 120001102222069. The reversal of 120001102222021 is 120222201100021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90809654948100 + 29191447273921 = 9529410^2 + 5402911^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001102222021 - 2¹⁵ = 120001102189253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120001102221986 and 120001102222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120001102226021) 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 as a sum of consecutive naturals, namely, 60000551111010 + 60000551111011.

It is an arithmetic number, because the mean of its divisors is an integer number (60000551111011).

Almost surely, 2^{120001102222021} is an apocalyptic number.

It is an amenable number.

120001102222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001102222021 is an equidigital number, since it uses as much as digits as its factorization.

120001102222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120001102222021 its reverse (120222201100021), we get a palindrome (240223303322042).

The spelling of 120001102222021 in words is "one hundred twenty trillion, one billion, one hundred two million, two hundred twenty-two thousand, twenty-one".