121020221000201 has 2 divisors, whose sum is σ = 121020221000202. Its totient is φ = 121020221000200.

The previous prime is 121020221000167. The next prime is 121020221000233. The reversal of 121020221000201 is 102000122020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96401764033600 + 24618456966601 = 9818440^2 + 4961699^2 .

It is a cyclic number.

It is not a de Polignac number, because 121020221000201 - 2³⁸ = 120745343093257 is a prime.

It is a super-2 number, since 2×121020221000201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121022221000201) 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 as a sum of consecutive naturals, namely, 60510110500100 + 60510110500101.

It is an arithmetic number, because the mean of its divisors is an integer number (60510110500101).

Almost surely, 2^{121020221000201} is an apocalyptic number.

It is an amenable number.

121020221000201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020221000201 is an equidigital number, since it uses as much as digits as its factorization.

121020221000201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121020221000201 its reverse (102000122020121), we get a palindrome (223020343020322).

The spelling of 121020221000201 in words is "one hundred twenty-one trillion, twenty billion, two hundred twenty-one million, two hundred one", and thus it is an aban number.