20020402022 has 4 divisors (see below), whose sum is σ = 30030603036. Its totient is φ = 10010201010.

The previous prime is 20020402021. The next prime is 20020402037. The reversal of 20020402022 is 22020402002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22020402002 = 2 ⋅11010201001.

It is a junction number, because it is equal to n+sod(n) for n = 20020401988 and 20020402006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020402021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005100504 + ... + 5005100507.

It is an arithmetic number, because the mean of its divisors is an integer number (7507650759).

Almost surely, 2^20020402022 is an apocalyptic number.

20020402022 is a deficient number, since it is larger than the sum of its proper divisors (10010201014).

20020402022 is a wasteful number, since it uses less digits than its factorization.

20020402022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010201013.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 20020402022 its reverse (22020402002), we get a palindrome (42040804024).

The spelling of 20020402022 in words is "twenty billion, twenty million, four hundred two thousand, twenty-two".