22102222012 has 48 divisors (see below), whose sum is σ = 42039309312. Its totient is φ = 10106965440.

The previous prime is 22102221991. The next prime is 22102222033. The reversal of 22102222012 is 21022220122.

It is an interprime number because it is at equal distance from previous prime (22102221991) and next prime (22102222033).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4950093 + ... + 4954555.

It is an arithmetic number, because the mean of its divisors is an integer number (875818944).

Almost surely, 2^22102222012 is an apocalyptic number.

It is an amenable number.

22102222012 is a deficient number, since it is larger than the sum of its proper divisors (19937087300).

22102222012 is a wasteful number, since it uses less digits than its factorization.

22102222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338 (or 5336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22102222012 its reverse (21022220122), we get a palindrome (43124442134).

It can be divided in two parts, 2210 and 2222012, that added together give a palindrome (2224222).

The spelling of 22102222012 in words is "twenty-two billion, one hundred two million, two hundred twenty-two thousand, twelve".