20420042002022 has 48 divisors (see below), whose sum is σ = 35233156874160. Its totient is φ = 8821027514304.

The previous prime is 20420042002001. The next prime is 20420042002039. The reversal of 20420042002022 is 22020024002402.

It is a junction number, because it is equal to n+sod(n) for n = 20420042001985 and 20420042002003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12326897 + ... + 13884972.

It is an arithmetic number, because the mean of its divisors is an integer number (734024101545).

Almost surely, 2^{20420042002022} is an apocalyptic number.

20420042002022 is a deficient number, since it is larger than the sum of its proper divisors (14813114872138).

20420042002022 is a wasteful number, since it uses less digits than its factorization.

20420042002022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26212005 (or 26211986 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20420042002022 its reverse (22020024002402), we get a palindrome (42440066004424).

The spelling of 20420042002022 in words is "twenty trillion, four hundred twenty billion, forty-two million, two thousand, twenty-two".