20002222122 has 16 divisors (see below), whose sum is σ = 40007967552. Its totient is φ = 6666820160.

The previous prime is 20002222091. The next prime is 20002222129. The reversal of 20002222122 is 22122220002.

It is not an unprimeable number, because it can be changed into a prime (20002222129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69903 + ... + 211874.

It is an arithmetic number, because the mean of its divisors is an integer number (2500497972).

Almost surely, 2^20002222122 is an apocalyptic number.

20002222122 is an abundant number, since it is smaller than the sum of its proper divisors (20005745430).

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

20002222122 is a wasteful number, since it uses less digits than its factorization.

20002222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293613.

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

Adding to 20002222122 its reverse (22122220002), we get a palindrome (42124442124).

The spelling of 20002222122 in words is "twenty billion, two million, two hundred twenty-two thousand, one hundred twenty-two".