22120100210021 has 8 divisors (see below), whose sum is σ = 24131583933600. Its totient is φ = 20108710740240.

The previous prime is 22120100210011. The next prime is 22120100210167. The reversal of 22120100210021 is 12001200102122.

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 22120100210021 - 2³⁸ = 21845222303077 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22120100209978 and 22120100210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120100210011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23072291 + ... + 24011888.

It is an arithmetic number, because the mean of its divisors is an integer number (3016447991700).

Almost surely, 2^{22120100210021} is an apocalyptic number.

It is an amenable number.

22120100210021 is a deficient number, since it is larger than the sum of its proper divisors (2011483723579).

22120100210021 is a wasteful number, since it uses less digits than its factorization.

22120100210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47126899.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22120100210021 its reverse (12001200102122), we get a palindrome (34121300312143).

The spelling of 22120100210021 in words is "twenty-two trillion, one hundred twenty billion, one hundred million, two hundred ten thousand, twenty-one".