1220434401032 has 192 divisors, whose sum is σ = 3023752550400. Its totient is φ = 448563588480.

The previous prime is 1220434401023. The next prime is 1220434401037. The reversal of 1220434401032 is 2301044340221.

It is a junction number, because it is equal to n+sod(n) for n = 1220434400992 and 1220434401010.

It is not an unprimeable number, because it can be changed into a prime (1220434401037) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 53136383 + ... + 53159345.

It is an arithmetic number, because the mean of its divisors is an integer number (15748711200).

Almost surely, 2^{1220434401032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220434401032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1511876275200).

1220434401032 is an abundant number, since it is smaller than the sum of its proper divisors (1803318149368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220434401032 is a wasteful number, since it uses less digits than its factorization.

1220434401032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23264 (or 23241 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1220434401032 its reverse (2301044340221), we get a palindrome (3521478741253).

The spelling of 1220434401032 in words is "one trillion, two hundred twenty billion, four hundred thirty-four million, four hundred one thousand, thirty-two".