2221310735452 has 12 divisors (see below), whose sum is σ = 3887663621296. Its totient is φ = 1110549700800.

The previous prime is 2221310735437. The next prime is 2221310735473. The reversal of 2221310735452 is 2545370131222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26369424 + ... + 26453527.

Almost surely, 2^{2221310735452} is an apocalyptic number.

It is an amenable number.

2221310735452 is a deficient number, since it is larger than the sum of its proper divisors (1666352885844).

2221310735452 is a wasteful number, since it uses less digits than its factorization.

2221310735452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52833468 (or 52833466 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

Adding to 2221310735452 its reverse (2545370131222), we get a palindrome (4766680866674).

The spelling of 2221310735452 in words is "two trillion, two hundred twenty-one billion, three hundred ten million, seven hundred thirty-five thousand, four hundred fifty-two".