20202220422 has 16 divisors (see below), whose sum is σ = 44893823280. Its totient is φ = 6734073456.

The previous prime is 20202220373. The next prime is 20202220471. The reversal of 20202220422 is 22402220202.

It is a happy number.

20202220422 is a `hidden beast` number, since 2 + 0 + 20 + 2 + 220 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (20202220373) and next prime (20202220471).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20202220395 and 20202220404.

It is a congruent number.

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, 187057543 + ... + 187057650.

It is an arithmetic number, because the mean of its divisors is an integer number (2805863955).

Almost surely, 2^20202220422 is an apocalyptic number.

20202220422 is an abundant number, since it is smaller than the sum of its proper divisors (24691602858).

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

20202220422 is a wasteful number, since it uses less digits than its factorization.

20202220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374115204 (or 374115198 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20202220422 its reverse (22402220202), we get a palindrome (42604440624).

The spelling of 20202220422 in words is "twenty billion, two hundred two million, two hundred twenty thousand, four hundred twenty-two".