21103222111130 has 16 divisors (see below), whose sum is σ = 37985880678984. Its totient is φ = 8441270871360.

The previous prime is 21103222111093. The next prime is 21103222111291. The reversal of 21103222111130 is 3111122230112.

It can be written as a sum of positive squares in 4 ways, for example, as 17322169084081 + 3781053027049 = 4161991^2 + 1944493^2 .

It is a super-2 number, since 2×21103222111130² (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, 3348320 + ... + 7308740.

Almost surely, 2^{21103222111130} is an apocalyptic number.

21103222111130 is a deficient number, since it is larger than the sum of its proper divisors (16882658567854).

21103222111130 is a wasteful number, since it uses less digits than its factorization.

21103222111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4493281.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 21103222111130 its reverse (3111122230112), we get a palindrome (24214344341242).

The spelling of 21103222111130 in words is "twenty-one trillion, one hundred three billion, two hundred twenty-two million, one hundred eleven thousand, one hundred thirty".