121221201101053 has 2 divisors, whose sum is σ = 121221201101054. Its totient is φ = 121221201101052.

The previous prime is 121221201100969. The next prime is 121221201101087. The reversal of 121221201101053 is 350101102122121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78725639326009 + 42495561775044 = 8872747^2 + 6518862^2 .

It is a cyclic number.

It is not a de Polignac number, because 121221201101053 - 2²¹ = 121221199003901 is a prime.

It is a super-3 number, since 3×121221201101053³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121221201101953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60610600550526 + 60610600550527.

It is an arithmetic number, because the mean of its divisors is an integer number (60610600550527).

Almost surely, 2^{121221201101053} is an apocalyptic number.

It is an amenable number.

121221201101053 is a deficient number, since it is larger than the sum of its proper divisors (1).

121221201101053 is an equidigital number, since it uses as much as digits as its factorization.

121221201101053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 121221201101053 its reverse (350101102122121), we get a palindrome (471322303223174).

The spelling of 121221201101053 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred one million, one hundred one thousand, fifty-three".