121010111012201 has 2 divisors, whose sum is σ = 121010111012202. Its totient is φ = 121010111012200.

The previous prime is 121010111012183. The next prime is 121010111012251. The reversal of 121010111012201 is 102210111010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100727337762601 + 20282773249600 = 10036301^2 + 4503640^2 .

It is a cyclic number.

It is not a de Polignac number, because 121010111012201 - 2⁴⁶ = 50641366834537 is a prime.

It is not a weakly prime, because it can be changed into another prime (121010111012251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505055506100 + 60505055506101.

It is an arithmetic number, because the mean of its divisors is an integer number (60505055506101).

Almost surely, 2^{121010111012201} is an apocalyptic number.

It is an amenable number.

121010111012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010111012201 is an equidigital number, since it uses as much as digits as its factorization.

121010111012201 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 14.

Adding to 121010111012201 its reverse (102210111010121), we get a palindrome (223220222022322).

The spelling of 121010111012201 in words is "one hundred twenty-one trillion, ten billion, one hundred eleven million, twelve thousand, two hundred one".