1325402221155 has 16 divisors (see below), whose sum is σ = 2124172093344. Its totient is φ = 705705004800.

The previous prime is 1325402221147. The next prime is 1325402221177. The reversal of 1325402221155 is 5511222045231.

It is not a de Polignac number, because 1325402221155 - 2³ = 1325402221147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73501924 + ... + 73519953.

It is an arithmetic number, because the mean of its divisors is an integer number (132760755834).

Almost surely, 2^{1325402221155} is an apocalyptic number.

1325402221155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1325402221155 is a deficient number, since it is larger than the sum of its proper divisors (798769872189).

1325402221155 is a wasteful number, since it uses less digits than its factorization.

1325402221155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147022486.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1325402221155 its reverse (5511222045231), we get a palindrome (6836624266386).

The spelling of 1325402221155 in words is "one trillion, three hundred twenty-five billion, four hundred two million, two hundred twenty-one thousand, one hundred fifty-five".