20022220002 has 64 divisors (see below), whose sum is σ = 40822632576. Its totient is φ = 6546009600.

The previous prime is 20022219979. The next prime is 20022220003. The reversal of 20022220002 is 20002222002.

It is a self number, because there is not a number n which added to its sum of digits gives 20022220002.

It is not an unprimeable number, because it can be changed into a prime (20022220003) by changing a digit.

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, 53678688 + ... + 53679060.

It is an arithmetic number, because the mean of its divisors is an integer number (637853634).

Almost surely, 2^20022220002 is an apocalyptic number.

20022220002 is an abundant number, since it is smaller than the sum of its proper divisors (20800412574).

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

20022220002 is a wasteful number, since it uses less digits than its factorization.

20022220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20022220002 its reverse (20002222002), we get a palindrome (40024442004).

It can be divided in two parts, 2002222000 and 2, that added together give a palindrome (2002222002).

The spelling of 20022220002 in words is "twenty billion, twenty-two million, two hundred twenty thousand, two".