1220000405316 has 96 divisors (see below), whose sum is σ = 3616056235008. Its totient is φ = 310904280960.

The previous prime is 1220000405303. The next prime is 1220000405357. The reversal of 1220000405316 is 6135040000221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12407130 + ... + 12505073.

It is an arithmetic number, because the mean of its divisors is an integer number (37667252448).

Almost surely, 2^{1220000405316} is an apocalyptic number.

It is an amenable number.

1220000405316 is an abundant number, since it is smaller than the sum of its proper divisors (2396055829692).

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

1220000405316 is a wasteful number, since it uses less digits than its factorization.

1220000405316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24912281 (or 24912279 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1220000405316 its reverse (6135040000221), we get a palindrome (7355040405537).

The spelling of 1220000405316 in words is "one trillion, two hundred twenty billion, four hundred five thousand, three hundred sixteen".