1052234115221 has 2 divisors, whose sum is σ = 1052234115222. Its totient is φ = 1052234115220.

The previous prime is 1052234115193. The next prime is 1052234115239. The reversal of 1052234115221 is 1225114322501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 662376238225 + 389857876996 = 813865^2 + 624386^2 .

It is an emirp because it is prime and its reverse (1225114322501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1052234115221 is a prime.

It is a super-2 number, since 2×1052234115221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1052234115241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526117057610 + 526117057611.

It is an arithmetic number, because the mean of its divisors is an integer number (526117057611).

Almost surely, 2^{1052234115221} is an apocalyptic number.

It is an amenable number.

1052234115221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1052234115221 is an equidigital number, since it uses as much as digits as its factorization.

1052234115221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 1052234115221 its reverse (1225114322501), we get a palindrome (2277348437722).

The spelling of 1052234115221 in words is "one trillion, fifty-two billion, two hundred thirty-four million, one hundred fifteen thousand, two hundred twenty-one".