221040315405130 has 32 divisors (see below), whose sum is σ = 428479503632208. Its totient is φ = 81614627827200.

The previous prime is 221040315405127. The next prime is 221040315405163. The reversal of 221040315405130 is 31504513040122.

It can be written as a sum of positive squares in 8 ways, for example, as 152350216778529 + 68690098626601 = 12343023^2 + 8287949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221040315405092 and 221040315405101.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41389150 + ... + 46423510.

Almost surely, 2^{221040315405130} is an apocalyptic number.

221040315405130 is a deficient number, since it is larger than the sum of its proper divisors (207439188227078).

221040315405130 is a wasteful number, since it uses less digits than its factorization.

221040315405130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5372122.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 221040315405130 its reverse (31504513040122), we get a palindrome (252544828445252).

The spelling of 221040315405130 in words is "two hundred twenty-one trillion, forty billion, three hundred fifteen million, four hundred five thousand, one hundred thirty".