22120022011112 has 8 divisors (see below), whose sum is σ = 41475041270850. Its totient is φ = 11060011005552.

The previous prime is 22120022011111. The next prime is 22120022011183. The reversal of 22120022011112 is 21111022002122.

It can be written as a sum of positive squares in only one way, i.e., 15638180976196 + 6481841034916 = 3954514^2 + 2545946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22120022011111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382501375687 + ... + 1382501375702.

Almost surely, 2^{22120022011112} is an apocalyptic number.

It is an amenable number.

22120022011112 is a deficient number, since it is larger than the sum of its proper divisors (19355019259738).

22120022011112 is a wasteful number, since it uses less digits than its factorization.

22120022011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2765002751395 (or 2765002751391 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22120022011112 its reverse (21111022002122), we get a palindrome (43231044013234).

The spelling of 22120022011112 in words is "twenty-two trillion, one hundred twenty billion, twenty-two million, eleven thousand, one hundred twelve".