1220312352344 has 16 divisors (see below), whose sum is σ = 2288307507720. Its totient is φ = 610097016960.

The previous prime is 1220312352293. The next prime is 1220312352359. The reversal of 1220312352344 is 4432532130221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220312352344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7307174 + ... + 7472309.

Almost surely, 2^{1220312352344} is an apocalyptic number.

It is an amenable number.

1220312352344 is a deficient number, since it is larger than the sum of its proper divisors (1067995155376).

1220312352344 is a wasteful number, since it uses less digits than its factorization.

1220312352344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14789810 (or 14789806 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 1220312352344 its reverse (4432532130221), we get a palindrome (5652844482565).

The spelling of 1220312352344 in words is "one trillion, two hundred twenty billion, three hundred twelve million, three hundred fifty-two thousand, three hundred forty-four".