20122221220202 has 16 divisors (see below), whose sum is σ = 30226677018912. Its totient is φ = 10046670191280.

The previous prime is 20122221220181. The next prime is 20122221220259. The reversal of 20122221220202 is 20202212222102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3056873 + ... + 7041939.

It is an arithmetic number, because the mean of its divisors is an integer number (1889167313682).

Almost surely, 2^{20122221220202} is an apocalyptic number.

20122221220202 is a deficient number, since it is larger than the sum of its proper divisors (10104455798710).

20122221220202 is a wasteful number, since it uses less digits than its factorization.

20122221220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988693.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20122221220202 its reverse (20202212222102), we get a palindrome (40324433442304).

The spelling of 20122221220202 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred two".