1012221010253 has 2 divisors, whose sum is σ = 1012221010254. Its totient is φ = 1012221010252.

The previous prime is 1012221010201. The next prime is 1012221010277. The reversal of 1012221010253 is 3520101222101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960011959204 + 52209051049 = 979802^2 + 228493^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012221010253 - 2²⁰ = 1012219961677 is a prime.

It is a super-2 number, since 2×1012221010253² (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 (1012221016253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110505126 + 506110505127.

It is an arithmetic number, because the mean of its divisors is an integer number (506110505127).

Almost surely, 2^{1012221010253} is an apocalyptic number.

It is an amenable number.

1012221010253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221010253 is an equidigital number, since it uses as much as digits as its factorization.

1012221010253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 1012221010253 its reverse (3520101222101), we get a palindrome (4532322232354).

The spelling of 1012221010253 in words is "one trillion, twelve billion, two hundred twenty-one million, ten thousand, two hundred fifty-three".