21331103113210 has 32 divisors (see below), whose sum is σ = 42042241814400. Its totient is φ = 7727929200960.

The previous prime is 21331103113183. The next prime is 21331103113213. The reversal of 21331103113210 is 1231130113312.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (21331103113213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360414870 + ... + 360474049.

It is an arithmetic number, because the mean of its divisors is an integer number (1313820056700).

Almost surely, 2^{21331103113210} is an apocalyptic number.

21331103113210 is a deficient number, since it is larger than the sum of its proper divisors (20711138701190).

21331103113210 is a wasteful number, since it uses less digits than its factorization.

21331103113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720889206.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21331103113210 its reverse (1231130113312), we get a palindrome (22562233226522).

The spelling of 21331103113210 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred three million, one hundred thirteen thousand, two hundred ten".