20022420242 has 64 divisors (see below), whose sum is σ = 35568388224. Its totient is φ = 8351216640.

The previous prime is 20022420199. The next prime is 20022420277. The reversal of 20022420242 is 24202422002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3227888 + ... + 3234084.

It is an arithmetic number, because the mean of its divisors is an integer number (555756066).

Almost surely, 2^20022420242 is an apocalyptic number.

20022420242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20022420242 is a deficient number, since it is larger than the sum of its proper divisors (15545967982).

20022420242 is a wasteful number, since it uses less digits than its factorization.

20022420242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

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

Adding to 20022420242 its reverse (24202422002), we get a palindrome (44224842244).

The spelling of 20022420242 in words is "twenty billion, twenty-two million, four hundred twenty thousand, two hundred forty-two".