221311040403130 has 32 divisors (see below), whose sum is σ = 398569176213264. Its totient is φ = 88477915309056.

The previous prime is 221311040403113. The next prime is 221311040403137. The reversal of 221311040403130 is 31304040113122.

It can be written as a sum of positive squares in 8 ways, for example, as 452416319161 + 220858624083969 = 672619^2 + 14861313^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221311040403095 and 221311040403104.

It is not an unprimeable number, because it can be changed into a prime (221311040403137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160764424 + ... + 162135196.

Almost surely, 2^{221311040403130} is an apocalyptic number.

221311040403130 is a deficient number, since it is larger than the sum of its proper divisors (177258135810134).

221311040403130 is a wasteful number, since it uses less digits than its factorization.

221311040403130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379250.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 221311040403130 its reverse (31304040113122), we get a palindrome (252615080516252).

The spelling of 221311040403130 in words is "two hundred twenty-one trillion, three hundred eleven billion, forty million, four hundred three thousand, one hundred thirty".