361335213221 has 8 divisors (see below), whose sum is σ = 370169654400. Its totient is φ = 352501790560.

The previous prime is 361335213133. The next prime is 361335213229. The reversal of 361335213221 is 122312533163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 361335213221 - 2²⁶ = 361268104357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361335213229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489860 + ... + 981138.

It is an arithmetic number, because the mean of its divisors is an integer number (46271206800).

Almost surely, 2^361335213221 is an apocalyptic number.

It is an amenable number.

361335213221 is a deficient number, since it is larger than the sum of its proper divisors (8834441179).

361335213221 is a wasteful number, since it uses less digits than its factorization.

361335213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509259.

The product of its digits is 19440, while the sum is 32.

Adding to 361335213221 its reverse (122312533163), we get a palindrome (483647746384).

The spelling of 361335213221 in words is "three hundred sixty-one billion, three hundred thirty-five million, two hundred thirteen thousand, two hundred twenty-one".