1220432522355 has 12 divisors (see below), whose sum is σ = 2115416372160. Its totient is φ = 650897345232.

The previous prime is 1220432522321. The next prime is 1220432522359. The reversal of 1220432522355 is 5532252340221.

It is a happy number.

1220432522355 is a `hidden beast` number, since 1 + 220 + 4 + 32 + 52 + 2 + 355 = 666.

It is not a de Polignac number, because 1220432522355 - 2⁷ = 1220432522227 is a prime.

It is a super-3 number, since 3×1220432522355³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220432522359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13560361315 + ... + 13560361404.

It is an arithmetic number, because the mean of its divisors is an integer number (176284697680).

Almost surely, 2^{1220432522355} is an apocalyptic number.

1220432522355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220432522355 is a deficient number, since it is larger than the sum of its proper divisors (894983849805).

1220432522355 is a wasteful number, since it uses less digits than its factorization.

1220432522355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27120722730 (or 27120722727 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 1220432522355 its reverse (5532252340221), we get a palindrome (6752684862576).

The spelling of 1220432522355 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred twenty-two thousand, three hundred fifty-five".