1353221051025 has 24 divisors (see below), whose sum is σ = 2241243800224. Its totient is φ = 720453916800.

The previous prime is 1353221050949. The next prime is 1353221051057. The reversal of 1353221051025 is 5201501223531.

It is not a de Polignac number, because 1353221051025 - 2¹⁰ = 1353221050001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1353221050983 and 1353221051001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15756604 + ... + 15842253.

Almost surely, 2^{1353221051025} is an apocalyptic number.

1353221051025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1353221051025 is a deficient number, since it is larger than the sum of its proper divisors (888022749199).

1353221051025 is a wasteful number, since it uses less digits than its factorization.

1353221051025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31599441 (or 31599436 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 1353221051025 its reverse (5201501223531), we get a palindrome (6554722274556).

The spelling of 1353221051025 in words is "one trillion, three hundred fifty-three billion, two hundred twenty-one million, fifty-one thousand, twenty-five".