1220189635433 has 4 divisors (see below), whose sum is σ = 1223514403200. Its totient is φ = 1216864867668.

The previous prime is 1220189635391. The next prime is 1220189635447. The reversal of 1220189635433 is 3345369810221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220189635433 - 2²⁸ = 1219921199977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220189632433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1662383333 + ... + 1662384066.

It is an arithmetic number, because the mean of its divisors is an integer number (305878600800).

Almost surely, 2^{1220189635433} is an apocalyptic number.

It is an amenable number.

1220189635433 is a deficient number, since it is larger than the sum of its proper divisors (3324767767).

1220189635433 is an equidigital number, since it uses as much as digits as its factorization.

1220189635433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3324767766.

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 1220189635433 in words is "one trillion, two hundred twenty billion, one hundred eighty-nine million, six hundred thirty-five thousand, four hundred thirty-three".