121102020211201 has 4 divisors (see below), whose sum is σ = 121126790520900. Its totient is φ = 121077249901504.

The previous prime is 121102020211187. The next prime is 121102020211229. The reversal of 121102020211201 is 102112020201121.

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 57034818579600 + 64067201631601 = 7552140^2 + 8004199^2 .

It is a cyclic number.

It is not a de Polignac number, because 121102020211201 - 2⁵ = 121102020211169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102020211231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12385147516 + ... + 12385157293.

It is an arithmetic number, because the mean of its divisors is an integer number (30281697630225).

Almost surely, 2^{121102020211201} is an apocalyptic number.

It is an amenable number.

121102020211201 is a deficient number, since it is larger than the sum of its proper divisors (24770309699).

121102020211201 is an equidigital number, since it uses as much as digits as its factorization.

121102020211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24770309698.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121102020211201 its reverse (102112020201121), we get a palindrome (223214040412322).

The spelling of 121102020211201 in words is "one hundred twenty-one trillion, one hundred two billion, twenty million, two hundred eleven thousand, two hundred one".