20020122222 has 16 divisors (see below), whose sum is σ = 40414453632. Its totient is φ = 6611005880.

The previous prime is 20020122211. The next prime is 20020122271. The reversal of 20020122222 is 22222102002.

It is a congruent number.

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, 15591354 + ... + 15592637.

It is an arithmetic number, because the mean of its divisors is an integer number (2525903352).

Almost surely, 2^20020122222 is an apocalyptic number.

20020122222 is an abundant number, since it is smaller than the sum of its proper divisors (20394331410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020122222 is a wasteful number, since it uses less digits than its factorization.

20020122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31184103.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20020122222 its reverse (22222102002), we get a palindrome (42242224224).

The spelling of 20020122222 in words is "twenty billion, twenty million, one hundred twenty-two thousand, two hundred twenty-two".