1220252002253 has 4 divisors (see below), whose sum is σ = 1232831919900. Its totient is φ = 1207672084608.

The previous prime is 1220252002243. The next prime is 1220252002259. The reversal of 1220252002253 is 3522002520221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 961315538089 + 258936464164 = 980467^2 + 508858^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220252002253 - 2¹² = 1220251998157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220252002259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6289958678 + ... + 6289958871.

It is an arithmetic number, because the mean of its divisors is an integer number (308207979975).

Almost surely, 2^{1220252002253} is an apocalyptic number.

It is an amenable number.

1220252002253 is a deficient number, since it is larger than the sum of its proper divisors (12579917647).

1220252002253 is an equidigital number, since it uses as much as digits as its factorization.

1220252002253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579917646.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 1220252002253 its reverse (3522002520221), we get a palindrome (4742254522474).

The spelling of 1220252002253 in words is "one trillion, two hundred twenty billion, two hundred fifty-two million, two thousand, two hundred fifty-three".