20222121202 has 16 divisors (see below), whose sum is σ = 30537615960. Its totient is φ = 10043027712.

The previous prime is 20222121181. The next prime is 20222121217. The reversal of 20222121202 is 20212122202.

It can be written as a sum of positive squares in 4 ways, for example, as 17495088361 + 2727032841 = 132269^2 + 52221^2 .

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 7 ways as a sum of consecutive naturals, for example, 342538 + ... + 397210.

Almost surely, 2^20222121202 is an apocalyptic number.

20222121202 is a deficient number, since it is larger than the sum of its proper divisors (10315494758).

20222121202 is a wasteful number, since it uses less digits than its factorization.

20222121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55917.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20222121202 its reverse (20212122202), we get a palindrome (40434243404).

It can be divided in two parts, 20 and 222121202, that added together give a palindrome (222121222).

The spelling of 20222121202 in words is "twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred two".