22021122120202 has 4 divisors (see below), whose sum is σ = 33031683180306. Its totient is φ = 11010561060100.

The previous prime is 22021122120167. The next prime is 22021122120247. The reversal of 22021122120202 is 20202122112022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17023389135481 + 4997732984721 = 4125941^2 + 2235561^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22021122120202.

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 as a sum of consecutive naturals, namely, 5505280530049 + ... + 5505280530052.

Almost surely, 2^{22021122120202} is an apocalyptic number.

22021122120202 is a deficient number, since it is larger than the sum of its proper divisors (11010561060104).

22021122120202 is a wasteful number, since it uses less digits than its factorization.

22021122120202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11010561060103.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22021122120202 its reverse (20202122112022), we get a palindrome (42223244232224).

The spelling of 22021122120202 in words is "twenty-two trillion, twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred two".