220020122122 has 16 divisors (see below), whose sum is σ = 338157561672. Its totient is φ = 107302170880.

The previous prime is 220020122107. The next prime is 220020122131. The reversal of 220020122122 is 221221020022.

It can be written as a sum of positive squares in 4 ways, for example, as 142346989521 + 77673132601 = 377289^2 + 278699^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220020122096 and 220020122105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51798 + ... + 665374.

Almost surely, 2^220020122122 is an apocalyptic number.

220020122122 is a deficient number, since it is larger than the sum of its proper divisors (118137439550).

220020122122 is a wasteful number, since it uses less digits than its factorization.

220020122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617993.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220020122122 its reverse (221221020022), we get a palindrome (441241142144).

The spelling of 220020122122 in words is "two hundred twenty billion, twenty million, one hundred twenty-two thousand, one hundred twenty-two".