21210232033110 has 32 divisors (see below), whose sum is σ = 53898942579552. Its totient is φ = 5323352353280.

The previous prime is 21210232033099. The next prime is 21210232033121. The reversal of 21210232033110 is 1133023201212.

It is an interprime number because it is at equal distance from previous prime (21210232033099) and next prime (21210232033121).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20794344621 + ... + 20794345640.

It is an arithmetic number, because the mean of its divisors is an integer number (1684341955611).

Almost surely, 2^{21210232033110} is an apocalyptic number.

21210232033110 is an abundant number, since it is smaller than the sum of its proper divisors (32688710546442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21210232033110 is a wasteful number, since it uses less digits than its factorization.

21210232033110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41588690288.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21210232033110 its reverse (1133023201212), we get a palindrome (22343255234322).

The spelling of 21210232033110 in words is "twenty-one trillion, two hundred ten billion, two hundred thirty-two million, thirty-three thousand, one hundred ten".