1220432513235 has 32 divisors (see below), whose sum is σ = 2103004061760. Its totient is φ = 600798325248.

The previous prime is 1220432513233. The next prime is 1220432513299. The reversal of 1220432513235 is 5323152340221.

It is not a de Polignac number, because 1220432513235 - 2¹ = 1220432513233 is a prime.

It is a super-3 number, since 3×1220432513235³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1220432513196 and 1220432513205.

It is not an unprimeable number, because it can be changed into a prime (1220432513233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4050381 + ... + 4341249.

It is an arithmetic number, because the mean of its divisors is an integer number (65718876930).

Almost surely, 2^{1220432513235} is an apocalyptic number.

1220432513235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1220432513235 is a deficient number, since it is larger than the sum of its proper divisors (882571548525).

1220432513235 is a wasteful number, since it uses less digits than its factorization.

1220432513235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312407.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 1220432513235 its reverse (5323152340221), we get a palindrome (6543584853456).

The spelling of 1220432513235 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-five".