22222220221112 has 8 divisors (see below), whose sum is σ = 41666662914600. Its totient is φ = 11111110110552.

The previous prime is 22222220221081. The next prime is 22222220221163. The reversal of 22222220221112 is 21112202222222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388888763812 + ... + 1388888763827.

It is an arithmetic number, because the mean of its divisors is an integer number (5208332864325).

Almost surely, 2^{22222220221112} is an apocalyptic number.

It is an amenable number.

22222220221112 is a deficient number, since it is larger than the sum of its proper divisors (19444442693488).

22222220221112 is a wasteful number, since it uses less digits than its factorization.

22222220221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777777527645 (or 2777777527641 counting only the distinct ones).

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

Adding to 22222220221112 its reverse (21112202222222), we get a palindrome (43334422443334).

The spelling of 22222220221112 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twelve".