1220435232243 has 32 divisors (see below), whose sum is σ = 1760066703360. Its totient is φ = 749282856960.

The previous prime is 1220435232239. The next prime is 1220435232299. The reversal of 1220435232243 is 3422325340221.

It is not a de Polignac number, because 1220435232243 - 2² = 1220435232239 is a prime.

It is a super-2 number, since 2×1220435232243² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220435231243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9835558 + ... + 9958868.

It is an arithmetic number, because the mean of its divisors is an integer number (55002084480).

Almost surely, 2^{1220435232243} is an apocalyptic number.

1220435232243 is a deficient number, since it is larger than the sum of its proper divisors (539631471117).

1220435232243 is a wasteful number, since it uses less digits than its factorization.

1220435232243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127507.

The product of its (nonzero) digits is 69120, while the sum is 33.

The spelling of 1220435232243 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, two hundred thirty-two thousand, two hundred forty-three".