21106610332 has 12 divisors (see below), whose sum is σ = 38880598120. Its totient is φ = 9997868016.

The previous prime is 21106610311. The next prime is 21106610333. The reversal of 21106610332 is 23301660112.

It is a junction number, because it is equal to n+sod(n) for n = 21106610297 and 21106610306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21106610333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138859203 + ... + 138859354.

Almost surely, 2^21106610332 is an apocalyptic number.

It is an amenable number.

21106610332 is a deficient number, since it is larger than the sum of its proper divisors (17773987788).

21106610332 is a wasteful number, since it uses less digits than its factorization.

21106610332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277718580 (or 277718578 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 21106610332 in words is "twenty-one billion, one hundred six million, six hundred ten thousand, three hundred thirty-two".