1351221306627 has 4 divisors (see below), whose sum is σ = 1801628408840. Its totient is φ = 900814204416.

The previous prime is 1351221306599. The next prime is 1351221306661. The reversal of 1351221306627 is 7266031221531.

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

It is not a de Polignac number, because 1351221306627 - 2⁸ = 1351221306371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351221506627) 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, 225203551102 + ... + 225203551107.

It is an arithmetic number, because the mean of its divisors is an integer number (450407102210).

Almost surely, 2^{1351221306627} is an apocalyptic number.

1351221306627 is a deficient number, since it is larger than the sum of its proper divisors (450407102213).

1351221306627 is an equidigital number, since it uses as much as digits as its factorization.

1351221306627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450407102212.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 1351221306627 in words is "one trillion, three hundred fifty-one billion, two hundred twenty-one million, three hundred six thousand, six hundred twenty-seven".