20434434201224 has 32 divisors (see below), whose sum is σ = 38510948836800. Its totient is φ = 10164852949440.

The previous prime is 20434434201217. The next prime is 20434434201227. The reversal of 20434434201224 is 42210243443402.

It is a super-2 number, since 2×20434434201224² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20434434201227) 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, 32817509 + ... + 33434379.

It is an arithmetic number, because the mean of its divisors is an integer number (1203467151150).

Almost surely, 2^{20434434201224} is an apocalyptic number.

It is an amenable number.

20434434201224 is a deficient number, since it is larger than the sum of its proper divisors (18076514635576).

20434434201224 is a wasteful number, since it uses less digits than its factorization.

20434434201224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638093 (or 638089 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 20434434201224 its reverse (42210243443402), we get a palindrome (62644677644626).

The spelling of 20434434201224 in words is "twenty trillion, four hundred thirty-four billion, four hundred thirty-four million, two hundred one thousand, two hundred twenty-four".