221413306154316 has 24 divisors (see below), whose sum is σ = 516712909864704. Its totient is φ = 73792740788880.

The previous prime is 221413306154279. The next prime is 221413306154363. The reversal of 221413306154316 is 613451603314122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1461745600 + ... + 1461897063.

It is an arithmetic number, because the mean of its divisors is an integer number (21529704577696).

Almost surely, 2^{221413306154316} is an apocalyptic number.

It is an amenable number.

221413306154316 is an abundant number, since it is smaller than the sum of its proper divisors (295299603710388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221413306154316 is a wasteful number, since it uses less digits than its factorization.

221413306154316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923648981 (or 2923648979 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

Adding to 221413306154316 its reverse (613451603314122), we get a palindrome (834864909468438).

The spelling of 221413306154316 in words is "two hundred twenty-one trillion, four hundred thirteen billion, three hundred six million, one hundred fifty-four thousand, three hundred sixteen".