20130122222 has 16 divisors (see below), whose sum is σ = 34535418720. Its totient is φ = 8620535808.

The previous prime is 20130122171. The next prime is 20130122237. The reversal of 20130122222 is 22222103102.

It is a self number, because there is not a number n which added to its sum of digits gives 20130122222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536147 + ... + 572462.

It is an arithmetic number, because the mean of its divisors is an integer number (2158463670).

Almost surely, 2^20130122222 is an apocalyptic number.

20130122222 is a deficient number, since it is larger than the sum of its proper divisors (14405296498).

20130122222 is a wasteful number, since it uses less digits than its factorization.

20130122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109915.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20130122222 its reverse (22222103102), we get a palindrome (42352225324).

The spelling of 20130122222 in words is "twenty billion, one hundred thirty million, one hundred twenty-two thousand, two hundred twenty-two".