1220432513234 has 16 divisors (see below), whose sum is σ = 1997089218720. Its totient is φ = 554737097760.

The previous prime is 1220432513233. The next prime is 1220432513299. The reversal of 1220432513234 is 4323152340221.

It is a super-3 number, since 3×1220432513234³ (a number of 37 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1220432513234.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3600782 + ... + 3925110.

It is an arithmetic number, because the mean of its divisors is an integer number (124818076170).

Almost surely, 2^{1220432513234} is an apocalyptic number.

1220432513234 is a deficient number, since it is larger than the sum of its proper divisors (776656705486).

1220432513234 is a wasteful number, since it uses less digits than its factorization.

1220432513234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495385.

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

Adding to 1220432513234 its reverse (4323152340221), we get a palindrome (5543584853455).

The spelling of 1220432513234 in words is "one trillion, two hundred twenty billion, four hundred thirty-two million, five hundred thirteen thousand, two hundred thirty-four".