221535253235313 has 48 divisors (see below), whose sum is σ = 325530713604096. Its totient is φ = 145160952824160.

The previous prime is 221535253235269. The next prime is 221535253235321. The reversal of 221535253235313 is 313532352535122.

221535253235313 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 3 + 5 + 2 + 5 + 323 + 5 + 313 = 666.

It is not a de Polignac number, because 221535253235313 - 2¹⁶ = 221535253169777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221535253235213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86633020 + ... + 89153522.

It is an arithmetic number, because the mean of its divisors is an integer number (6781889866752).

Almost surely, 2^{221535253235313} is an apocalyptic number.

It is an amenable number.

221535253235313 is a deficient number, since it is larger than the sum of its proper divisors (103995460368783).

221535253235313 is a wasteful number, since it uses less digits than its factorization.

221535253235313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521354 (or 2521351 counting only the distinct ones).

The product of its digits is 2430000, while the sum is 45.

The spelling of 221535253235313 in words is "two hundred twenty-one trillion, five hundred thirty-five billion, two hundred fifty-three million, two hundred thirty-five thousand, three hundred thirteen".