21202332221131 has 8 divisors (see below), whose sum is σ = 21252298475520. Its totient is φ = 21152389728168.

The previous prime is 21202332221129. The next prime is 21202332221171. The reversal of 21202332221131 is 13112223320212.

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 21202332221131 - 2¹ = 21202332221129 is a prime.

It is a super-2 number, since 2×21202332221131² (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 = 21202332221096 and 21202332221105.

It is not an unprimeable number, because it can be changed into a prime (21202332221171) 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, 4153021 + ... + 7723486.

It is an arithmetic number, because the mean of its divisors is an integer number (2656537309440).

Almost surely, 2^{21202332221131} is an apocalyptic number.

21202332221131 is a deficient number, since it is larger than the sum of its proper divisors (49966254389).

21202332221131 is a wasteful number, since it uses less digits than its factorization.

21202332221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880713.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21202332221131 its reverse (13112223320212), we get a palindrome (34314555541343).

The spelling of 21202332221131 in words is "twenty-one trillion, two hundred two billion, three hundred thirty-two million, two hundred twenty-one thousand, one hundred thirty-one".