20221022220122 has 4 divisors (see below), whose sum is σ = 30331533330186. Its totient is φ = 10110511110060.

The previous prime is 20221022220073. The next prime is 20221022220167. The reversal of 20221022220122 is 22102222012202.

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., 18040907956681 + 2180114263441 = 4247459^2 + 1476521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20221022220094 and 20221022220103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055255555029 + ... + 5055255555032.

Almost surely, 2^{20221022220122} is an apocalyptic number.

20221022220122 is a deficient number, since it is larger than the sum of its proper divisors (10110511110064).

20221022220122 is a wasteful number, since it uses less digits than its factorization.

20221022220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110511110063.

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

Adding to 20221022220122 its reverse (22102222012202), we get a palindrome (42323244232324).

The spelling of 20221022220122 in words is "twenty trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty thousand, one hundred twenty-two".