21220110040131 has 24 divisors (see below), whose sum is σ = 32295548480000. Its totient is φ = 13389275540592.

The previous prime is 21220110040097. The next prime is 21220110040133. The reversal of 21220110040131 is 13104001102212.

21220110040131 is a `hidden beast` number, since 2 + 1 + 220 + 1 + 10 + 0 + 401 + 31 = 666.

It is not a de Polignac number, because 21220110040131 - 2⁶ = 21220110040067 is a prime.

It is a super-2 number, since 2×21220110040131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220110040133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59540431 + ... + 59895768.

Almost surely, 2^{21220110040131} is an apocalyptic number.

21220110040131 is a deficient number, since it is larger than the sum of its proper divisors (11075438439869).

21220110040131 is a wasteful number, since it uses less digits than its factorization.

21220110040131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119437263 (or 119437260 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21220110040131 its reverse (13104001102212), we get a palindrome (34324111142343).

The spelling of 21220110040131 in words is "twenty-one trillion, two hundred twenty billion, one hundred ten million, forty thousand, one hundred thirty-one".