221433255035355 has 128 divisors (see below), whose sum is σ = 410161493145600. Its totient is φ = 100818166210560.

The previous prime is 221433255035341. The next prime is 221433255035413. The reversal of 221433255035355 is 553530552334122.

It is a happy number.

It is not a de Polignac number, because 221433255035355 - 2⁵ = 221433255035323 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2562456129 + ... + 2562542541.

It is an arithmetic number, because the mean of its divisors is an integer number (3204386665200).

Almost surely, 2^{221433255035355} is an apocalyptic number.

221433255035355 is a deficient number, since it is larger than the sum of its proper divisors (188728238110245).

221433255035355 is a wasteful number, since it uses less digits than its factorization.

221433255035355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88501.

The product of its (nonzero) digits is 8100000, while the sum is 48.

The spelling of 221433255035355 in words is "two hundred twenty-one trillion, four hundred thirty-three billion, two hundred fifty-five million, thirty-five thousand, three hundred fifty-five".