20022021822 has 32 divisors (see below), whose sum is σ = 43750594944. Its totient is φ = 6058087200.

The previous prime is 20022021781. The next prime is 20022021823. The reversal of 20022021822 is 22812022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022021823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185848 + ... + 273099.

It is an arithmetic number, because the mean of its divisors is an integer number (1367206092).

Almost surely, 2^20022021822 is an apocalyptic number.

20022021822 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20022021822 is an abundant number, since it is smaller than the sum of its proper divisors (23728573122).

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

20022021822 is a wasteful number, since it uses less digits than its factorization.

20022021822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459624.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20022021822 its reverse (22812022002), we get a palindrome (42834043824).

It can be divided in two parts, 200 and 22021822, that added together give a palindrome (22022022).

The spelling of 20022021822 in words is "twenty billion, twenty-two million, twenty-one thousand, eight hundred twenty-two".