22111210222012 has 6 divisors (see below), whose sum is σ = 38694617888528. Its totient is φ = 11055605111004.

The previous prime is 22111210222007. The next prime is 22111210222019. The reversal of 22111210222012 is 21022201211122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111210222019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2763901277748 + ... + 2763901277755.

Almost surely, 2^{22111210222012} is an apocalyptic number.

It is an amenable number.

22111210222012 is a deficient number, since it is larger than the sum of its proper divisors (16583407666516).

22111210222012 is a wasteful number, since it uses less digits than its factorization.

22111210222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527802555507 (or 5527802555505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22111210222012 its reverse (21022201211122), we get a palindrome (43133411433134).

The spelling of 22111210222012 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-two thousand, twelve".