22012222122112 has 256 divisors, whose sum is σ = 46910578464000. Its totient is φ = 10266563248128.

The previous prime is 22012222122091. The next prime is 22012222122169. The reversal of 22012222122112 is 21122122221022.

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, 8155694139 + ... + 8155696837.

It is an arithmetic number, because the mean of its divisors is an integer number (183244447125).

Almost surely, 2^{22012222122112} 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 22012222122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23455289232000).

22012222122112 is an abundant number, since it is smaller than the sum of its proper divisors (24898356341888).

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

22012222122112 is a wasteful number, since it uses less digits than its factorization.

22012222122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22012222122112 its reverse (21122122221022), we get a palindrome (43134344343134).

The spelling of 22012222122112 in words is "twenty-two trillion, twelve billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twelve".