21113011133210 has 16 divisors (see below), whose sum is σ = 38626426926792. Its totient is φ = 8306758478400.

The previous prime is 21113011133209. The next prime is 21113011133299. The reversal of 21113011133210 is 1233111031112.

It can be written as a sum of positive squares in 4 ways, for example, as 10020307947169 + 11092703186041 = 3165487^2 + 3330571^2 .

It is a super-2 number, since 2×21113011133210² (a number of 27 digits) contains 22 as substring.

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, 17305746221 + ... + 17305747440.

Almost surely, 2^{21113011133210} is an apocalyptic number.

21113011133210 is a deficient number, since it is larger than the sum of its proper divisors (17513415793582).

21113011133210 is a wasteful number, since it uses less digits than its factorization.

21113011133210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34611493729.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 21113011133210 its reverse (1233111031112), we get a palindrome (22346122164322).

The spelling of 21113011133210 in words is "twenty-one trillion, one hundred thirteen billion, eleven million, one hundred thirty-three thousand, two hundred ten".