21220022010023 has 8 divisors (see below), whose sum is σ = 22496553413760. Its totient is φ = 19980491516640.

The previous prime is 21220022009987. The next prime is 21220022010029. The reversal of 21220022010023 is 32001022002212.

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 21220022010023 - 2⁶ = 21220022009959 is a prime.

It is a super-2 number, since 2×21220022010023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21220022009983 and 21220022010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220022010029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9250226408 + ... + 9250228701.

It is an arithmetic number, because the mean of its divisors is an integer number (2812069176720).

Almost surely, 2^{21220022010023} is an apocalyptic number.

21220022010023 is a deficient number, since it is larger than the sum of its proper divisors (1276531403737).

21220022010023 is a wasteful number, since it uses less digits than its factorization.

21220022010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18500455177.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21220022010023 its reverse (32001022002212), we get a palindrome (53221044012235).

The spelling of 21220022010023 in words is "twenty-one trillion, two hundred twenty billion, twenty-two million, ten thousand, twenty-three".