121110221053 has 2 divisors, whose sum is σ = 121110221054. Its totient is φ = 121110221052.

The previous prime is 121110220991. The next prime is 121110221077. The reversal of 121110221053 is 350122011121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119396509444 + 1713711609 = 345538^2 + 41397^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110221053 - 2²¹ = 121108123901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121110221053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110201053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555110526 + 60555110527.

It is an arithmetic number, because the mean of its divisors is an integer number (60555110527).

Almost surely, 2^121110221053 is an apocalyptic number.

It is an amenable number.

121110221053 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110221053 is an equidigital number, since it uses as much as digits as its factorization.

121110221053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 121110221053 its reverse (350122011121), we get a palindrome (471232232174).

The spelling of 121110221053 in words is "one hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand, fifty-three".