21022331229 has 12 divisors (see below), whose sum is σ = 30407832000. Its totient is φ = 13995390984.

The previous prime is 21022331219. The next prime is 21022331233. The reversal of 21022331229 is 92213322012.

21022331229 is a `hidden beast` number, since 2 + 102 + 2 + 331 + 229 = 666.

It is not a de Polignac number, because 21022331229 - 2¹⁵ = 21022298461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022331219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1617879 + ... + 1630820.

It is an arithmetic number, because the mean of its divisors is an integer number (2533986000).

Almost surely, 2^21022331229 is an apocalyptic number.

It is an amenable number.

21022331229 is a deficient number, since it is larger than the sum of its proper divisors (9385500771).

21022331229 is a wasteful number, since it uses less digits than its factorization.

21022331229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249424 (or 3249421 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 21022331229 in words is "twenty-one billion, twenty-two million, three hundred thirty-one thousand, two hundred twenty-nine".