1005220505351 has 4 divisors (see below), whose sum is σ = 1005690017304. Its totient is φ = 1004750993400.

The previous prime is 1005220505293. The next prime is 1005220505447. The reversal of 1005220505351 is 1535050225001.

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

It is a cyclic number.

It is not a de Polignac number, because 1005220505351 - 2¹⁸ = 1005220243207 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 (1005220505851) 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, 234752765 + ... + 234757046.

It is an arithmetic number, because the mean of its divisors is an integer number (251422504326).

Almost surely, 2^{1005220505351} is an apocalyptic number.

1005220505351 is a deficient number, since it is larger than the sum of its proper divisors (469511953).

1005220505351 is an equidigital number, since it uses as much as digits as its factorization.

1005220505351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469511952.

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 1005220505351 in words is "one trillion, five billion, two hundred twenty million, five hundred five thousand, three hundred fifty-one".