20222221112 has 8 divisors (see below), whose sum is σ = 37916664600. Its totient is φ = 10111110552.

The previous prime is 20222221099. The next prime is 20222221127. The reversal of 20222221112 is 21112222202.

It is a happy number.

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, 1263888812 + ... + 1263888827.

It is an arithmetic number, because the mean of its divisors is an integer number (4739583075).

Almost surely, 2^20222221112 is an apocalyptic number.

It is an amenable number.

20222221112 is a deficient number, since it is larger than the sum of its proper divisors (17694443488).

20222221112 is a wasteful number, since it uses less digits than its factorization.

20222221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527777645 (or 2527777641 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20222221112 its reverse (21112222202), we get a palindrome (41334443314).

The spelling of 20222221112 in words is "twenty billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".