22012100110021 has 8 divisors (see below), whose sum is σ = 25387481123840. Its totient is φ = 18694417917168.

The previous prime is 22012100110019. The next prime is 22012100110057. The reversal of 22012100110021 is 12001100121022.

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

It is not a de Polignac number, because 22012100110021 - 2¹ = 22012100110019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22012100109983 and 22012100110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012100111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14424704421 + ... + 14424705946.

It is an arithmetic number, because the mean of its divisors is an integer number (3173435140480).

Almost surely, 2^{22012100110021} is an apocalyptic number.

It is an amenable number.

22012100110021 is a deficient number, since it is larger than the sum of its proper divisors (3375381013819).

22012100110021 is a wasteful number, since it uses less digits than its factorization.

22012100110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28849410483.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22012100110021 its reverse (12001100121022), we get a palindrome (34013200231043).

It can be divided in two parts, 220121001 and 10021, that added together give a palindrome (220131022).

The spelling of 22012100110021 in words is "twenty-two trillion, twelve billion, one hundred million, one hundred ten thousand, twenty-one".