20220122 has 16 divisors (see below), whose sum is σ = 33718272.
Its totient is φ = 9030960.
The previous prime is 20220121. The next prime is 20220127. The reversal of 20220122 is 22102202.
It is not an unprimeable number, because it can be changed into a prime (20220121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11738 + ... + 13349.
It is an arithmetic number, because the mean of its divisors is an integer number (2107392).
Almost surely, 220220122 is an apocalyptic number.
20220122 is a deficient number, since it is larger than the sum of its proper divisors (13498150).
20220122 is a wasteful number, since it uses less digits than its factorization.
20220122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25133.
The product of its (nonzero) digits is 32, while the sum is 11.
The square root of 20220122 is about 4496.6789967708.
The cubic root of 20220122 is about 272.4339687945.
Adding to 20220122 its reverse (22102202), we get a palindrome (42322324).
The spelling of 20220122 in words is "twenty million, two hundred twenty thousand, one hundred twenty-two".