22010232120021 has 20 divisors (see below), whose sum is σ = 32887603435500. Its totient is φ = 14669863883136.

The previous prime is 22010232119969. The next prime is 22010232120031. The reversal of 22010232120021 is 12002123201022.

22010232120021 is a `hidden beast` number, since 2 + 20 + 102 + 321 + 200 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3759914902500 + 18250317217521 = 1939050^2 + 4272039^2 .

It is not a de Polignac number, because 22010232120021 - 2⁶ = 22010232119957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22010232119976 and 22010232120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22010232120031) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33227386 + ... + 33883323.

It is an arithmetic number, because the mean of its divisors is an integer number (1644380171775).

Almost surely, 2^{22010232120021} is an apocalyptic number.

It is an amenable number.

22010232120021 is a deficient number, since it is larger than the sum of its proper divisors (10877371315479).

22010232120021 is an equidigital number, since it uses as much as digits as its factorization.

22010232120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67114770 (or 67114761 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22010232120021 its reverse (12002123201022), we get a palindrome (34012355321043).

The spelling of 22010232120021 in words is "twenty-two trillion, ten billion, two hundred thirty-two million, one hundred twenty thousand, twenty-one".