21233111133210 has 16 divisors (see below), whose sum is σ = 50959466719776. Its totient is φ = 5662162968848.

The previous prime is 21233111133197. The next prime is 21233111133251. The reversal of 21233111133210 is 1233111133212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353885185524 + ... + 353885185583.

It is an arithmetic number, because the mean of its divisors is an integer number (3184966669986).

Almost surely, 2^{21233111133210} is an apocalyptic number.

21233111133210 is an abundant number, since it is smaller than the sum of its proper divisors (29726355586566).

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

21233111133210 is a wasteful number, since it uses less digits than its factorization.

21233111133210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707770371117.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 21233111133210 its reverse (1233111133212), we get a palindrome (22466222266422).

The spelling of 21233111133210 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred eleven million, one hundred thirty-three thousand, two hundred ten".