22122220122212 has 96 divisors (see below), whose sum is σ = 46130902272000. Its totient is φ = 9082006843392.

The previous prime is 22122220122173. The next prime is 22122220122251. The reversal of 22122220122212 is 21222102222122.

It is an interprime number because it is at equal distance from previous prime (22122220122173) and next prime (22122220122251).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104306708 + ... + 104518580.

It is an arithmetic number, because the mean of its divisors is an integer number (480530232000).

Almost surely, 2^{22122220122212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22122220122212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23065451136000).

22122220122212 is an abundant number, since it is smaller than the sum of its proper divisors (24008682149788).

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

22122220122212 is a wasteful number, since it uses less digits than its factorization.

22122220122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212925 (or 212923 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22122220122212 its reverse (21222102222122), we get a palindrome (43344322344334).

The spelling of 22122220122212 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred twelve".