3120220055480 has 64 divisors (see below), whose sum is σ = 7658905795200. Its totient is φ = 1134598239360.

The previous prime is 3120220055473. The next prime is 3120220055483. The reversal of 3120220055480 is 845500220213.

It is a super-2 number, since 2×3120220055480² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120220055483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31966991 + ... + 32064449.

It is an arithmetic number, because the mean of its divisors is an integer number (119670403050).

Almost surely, 2^{3120220055480} is an apocalyptic number.

It is an amenable number.

3120220055480 is an abundant number, since it is smaller than the sum of its proper divisors (4538685739720).

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

3120220055480 is a wasteful number, since it uses less digits than its factorization.

3120220055480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170244 (or 170240 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 3120220055480 its reverse (845500220213), we get a palindrome (3965720275693).

The spelling of 3120220055480 in words is "three trillion, one hundred twenty billion, two hundred twenty million, fifty-five thousand, four hundred eighty".