220420425044 has 24 divisors (see below), whose sum is σ = 389934350568. Its totient is φ = 109016337920.

The previous prime is 220420425023. The next prime is 220420425047. The reversal of 220420425044 is 440524024022.

220420425044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20845584400 + 199574840644 = 144380^2 + 446738^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220420424998 and 220420425016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220420425047) 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, 561719 + ... + 869694.

It is an arithmetic number, because the mean of its divisors is an integer number (16247264607).

Almost surely, 2^220420425044 is an apocalyptic number.

It is an amenable number.

220420425044 is a deficient number, since it is larger than the sum of its proper divisors (169513925524).

220420425044 is a wasteful number, since it uses less digits than its factorization.

220420425044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431835 (or 1431833 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

Adding to 220420425044 its reverse (440524024022), we get a palindrome (660944449066).

The spelling of 220420425044 in words is "two hundred twenty billion, four hundred twenty million, four hundred twenty-five thousand, forty-four".