22011331112 has 8 divisors (see below), whose sum is σ = 41271245850. Its totient is φ = 11005665552.

The previous prime is 22011331099. The next prime is 22011331127. The reversal of 22011331112 is 21113311022.

It can be written as a sum of positive squares in only one way, i.e., 21905776036 + 105555076 = 148006^2 + 10274^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375708187 + ... + 1375708202.

Almost surely, 2^22011331112 is an apocalyptic number.

It is an amenable number.

22011331112 is a deficient number, since it is larger than the sum of its proper divisors (19259914738).

22011331112 is a wasteful number, since it uses less digits than its factorization.

22011331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751416395 (or 2751416391 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22011331112 its reverse (21113311022), we get a palindrome (43124642134).

The spelling of 22011331112 in words is "twenty-two billion, eleven million, three hundred thirty-one thousand, one hundred twelve".