120001111021201 has 2 divisors, whose sum is σ = 120001111021202. Its totient is φ = 120001111021200.

The previous prime is 120001111021189. The next prime is 120001111021271. The reversal of 120001111021201 is 102120111100021.

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., 98618107342225 + 21383003678976 = 9930665^2 + 4624176^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001111021201 - 2⁷ = 120001111021073 is a prime.

It is not a weakly prime, because it can be changed into another prime (120001111021271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000555510600 + 60000555510601.

It is an arithmetic number, because the mean of its divisors is an integer number (60000555510601).

Almost surely, 2^{120001111021201} is an apocalyptic number.

It is an amenable number.

120001111021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

120001111021201 is an equidigital number, since it uses as much as digits as its factorization.

120001111021201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120001111021201 its reverse (102120111100021), we get a palindrome (222121222121222).

The spelling of 120001111021201 in words is "one hundred twenty trillion, one billion, one hundred eleven million, twenty-one thousand, two hundred one".