21110220031310 has 8 divisors (see below), whose sum is σ = 37998396056376. Its totient is φ = 8444088012520.

The previous prime is 21110220031253. The next prime is 21110220031343. The reversal of 21110220031310 is 1313002201112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21110220031310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055511001556 + ... + 1055511001575.

It is an arithmetic number, because the mean of its divisors is an integer number (4749799507047).

Almost surely, 2^{21110220031310} is an apocalyptic number.

21110220031310 is a deficient number, since it is larger than the sum of its proper divisors (16888176025066).

21110220031310 is a wasteful number, since it uses less digits than its factorization.

21110220031310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111022003138.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21110220031310 its reverse (1313002201112), we get a palindrome (22423222232422).

The spelling of 21110220031310 in words is "twenty-one trillion, one hundred ten billion, two hundred twenty million, thirty-one thousand, three hundred ten".