21213032021110 has 16 divisors (see below), whose sum is σ = 38183909065632. Its totient is φ = 8485112491200.

The previous prime is 21213032021021. The next prime is 21213032021177. The reversal of 21213032021110 is 1112023031212.

It is a super-2 number, since 2×21213032021110² (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 7 ways as a sum of consecutive naturals, for example, 11648511 + ... + 13345930.

It is an arithmetic number, because the mean of its divisors is an integer number (2386494316602).

Almost surely, 2^{21213032021110} is an apocalyptic number.

21213032021110 is a deficient number, since it is larger than the sum of its proper divisors (16970877044522).

21213032021110 is a wasteful number, since it uses less digits than its factorization.

21213032021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25079319.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21213032021110 its reverse (1112023031212), we get a palindrome (22325055052322).

The spelling of 21213032021110 in words is "twenty-one trillion, two hundred thirteen billion, thirty-two million, twenty-one thousand, one hundred ten".