1220432512104 has 64 divisors (see below), whose sum is σ = 3650866497600. Its totient is φ = 375517695168.

The previous prime is 1220432512097. The next prime is 1220432512111. The reversal of 1220432512104 is 4012152340221.

1220432512104 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 43 + 2 + 512 + 104 = 666.

It is an interprime number because it is at equal distance from previous prime (1220432512097) and next prime (1220432512111).

It is a super-3 number, since 3×1220432512104³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217310674 + ... + 217316289.

It is an arithmetic number, because the mean of its divisors is an integer number (57044789025).

Almost surely, 2^{1220432512104} is an apocalyptic number.

It is an amenable number.

1220432512104 is an abundant number, since it is smaller than the sum of its proper divisors (2430433985496).

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

1220432512104 is a wasteful number, since it uses less digits than its factorization.

1220432512104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434626991 (or 434626981 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 1220432512104 its reverse (4012152340221), we get a palindrome (5232584852325).

The spelling of 1220432512104 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred twelve thousand, one hundred four".