121221101041 has 2 divisors, whose sum is σ = 121221101042. Its totient is φ = 121221101040.

The previous prime is 121221101011. The next prime is 121221101059. The reversal of 121221101041 is 140101122121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93633552016 + 27587549025 = 305996^2 + 166095^2 .

It is a cyclic number.

It is not a de Polignac number, because 121221101041 - 2¹³ = 121221092849 is a prime.

It is not a weakly prime, because it can be changed into another prime (121221101011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610550520 + 60610550521.

It is an arithmetic number, because the mean of its divisors is an integer number (60610550521).

Almost surely, 2^121221101041 is an apocalyptic number.

It is an amenable number.

121221101041 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221101041 is an equidigital number, since it uses as much as digits as its factorization.

121221101041 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 16.

Adding to 121221101041 its reverse (140101122121), we get a palindrome (261322223162).

The spelling of 121221101041 in words is "one hundred twenty-one billion, two hundred twenty-one million, one hundred one thousand, forty-one".