22001112000021 has 48 divisors (see below), whose sum is σ = 38789839424000. Its totient is φ = 10827614904480.

The previous prime is 22001112000019. The next prime is 22001112000037. The reversal of 22001112000021 is 12000021110022.

It is not a de Polignac number, because 22001112000021 - 2¹ = 22001112000019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001111999970 and 22001112000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001112000061) by changing a digit.

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 in 47 ways as a sum of consecutive naturals, for example, 227805571 + ... + 227902128.

Almost surely, 2^{22001112000021} is an apocalyptic number.

22001112000021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22001112000021 is a deficient number, since it is larger than the sum of its proper divisors (16788727423979).

22001112000021 is a wasteful number, since it uses less digits than its factorization.

22001112000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455707750 (or 455707739 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22001112000021 its reverse (12000021110022), we get a palindrome (34001133110043).

The spelling of 22001112000021 in words is "twenty-two trillion, one billion, one hundred twelve million, twenty-one", and thus it is an aban number.