1053221364121 has 2 divisors, whose sum is σ = 1053221364122. Its totient is φ = 1053221364120.

The previous prime is 1053221364119. The next prime is 1053221364161. The reversal of 1053221364121 is 1214631223501.

1053221364121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 820453712521 + 232767651600 = 905789^2 + 482460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1053221364121 - 2¹ = 1053221364119 is a prime.

It is a super-2 number, since 2×1053221364121² (a number of 25 digits) contains 22 as substring.

Together with 1053221364119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1053221364161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526610682060 + 526610682061.

It is an arithmetic number, because the mean of its divisors is an integer number (526610682061).

Almost surely, 2^{1053221364121} is an apocalyptic number.

It is an amenable number.

1053221364121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1053221364121 is an equidigital number, since it uses as much as digits as its factorization.

1053221364121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1053221364121 its reverse (1214631223501), we get a palindrome (2267852587622).

The spelling of 1053221364121 in words is "one trillion, fifty-three billion, two hundred twenty-one million, three hundred sixty-four thousand, one hundred twenty-one".