121001000011201 has 4 divisors (see below), whose sum is σ = 121325399475412. Its totient is φ = 120676600546992.

The previous prime is 121001000011189. The next prime is 121001000011211. The reversal of 121001000011201 is 102110000100121.

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 29682621726976 + 91318378284225 = 5448176^2 + 9556065^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001000011201 - 2¹⁷ = 121000999880129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121001000011211) 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, 162199731546 + ... + 162199732291.

It is an arithmetic number, because the mean of its divisors is an integer number (30331349868853).

Almost surely, 2^{121001000011201} is an apocalyptic number.

It is an amenable number.

121001000011201 is a deficient number, since it is larger than the sum of its proper divisors (324399464211).

121001000011201 is an equidigital number, since it uses as much as digits as its factorization.

121001000011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324399464210.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121001000011201 its reverse (102110000100121), we get a palindrome (223111000111322).

The spelling of 121001000011201 in words is "one hundred twenty-one trillion, one billion, eleven thousand, two hundred one".