355213413330021 has 96 divisors (see below), whose sum is σ = 532048338432000. Its totient is φ = 228194860569984.

The previous prime is 355213413330019. The next prime is 355213413330031. The reversal of 355213413330021 is 120033314312553.

355213413330021 is a `hidden beast` number, since 3 + 5 + 5 + 2 + 1 + 341 + 3 + 3 + 300 + 2 + 1 = 666.

It is not a de Polignac number, because 355213413330021 - 2¹ = 355213413330019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355213413330001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10828670406 + ... + 10828703208.

It is an arithmetic number, because the mean of its divisors is an integer number (5542170192000).

Almost surely, 2^{355213413330021} is an apocalyptic number.

It is an amenable number.

355213413330021 is a deficient number, since it is larger than the sum of its proper divisors (176834925101979).

355213413330021 is a wasteful number, since it uses less digits than its factorization.

355213413330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33823 (or 33820 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

Adding to 355213413330021 its reverse (120033314312553), we get a palindrome (475246727642574).

The spelling of 355213413330021 in words is "three hundred fifty-five trillion, two hundred thirteen billion, four hundred thirteen million, three hundred thirty thousand, twenty-one".