22012110021 has 8 divisors (see below), whose sum is σ = 32017614624. Its totient is φ = 13340672720.

The previous prime is 22012109941. The next prime is 22012110023. The reversal of 22012110021 is 12001121022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012110021 - 2¹³ = 22012101829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22012109979 and 22012110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333516786 + ... + 333516851.

It is an arithmetic number, because the mean of its divisors is an integer number (4002201828).

Almost surely, 2^22012110021 is an apocalyptic number.

It is an amenable number.

22012110021 is a deficient number, since it is larger than the sum of its proper divisors (10005504603).

22012110021 is a wasteful number, since it uses less digits than its factorization.

22012110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667033651.

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

Adding to 22012110021 its reverse (12001121022), we get a palindrome (34013231043).

The spelling of 22012110021 in words is "twenty-two billion, twelve million, one hundred ten thousand, twenty-one".