221332331211131 has 8 divisors (see below), whose sum is σ = 252961340581344. Its totient is φ = 189705848068800.

The previous prime is 221332331211067. The next prime is 221332331211157. The reversal of 221332331211131 is 131112133233122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221332331211131 - 2⁶ = 221332331211067 is a prime.

It is a super-2 number, since 2×221332331211131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221332331211094 and 221332331211103.

It is not an unprimeable number, because it can be changed into a prime (221332331211731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631369220 + ... + 631719681.

It is an arithmetic number, because the mean of its divisors is an integer number (31620167572668).

Almost surely, 2^{221332331211131} is an apocalyptic number.

221332331211131 is a deficient number, since it is larger than the sum of its proper divisors (31629009370213).

221332331211131 is a wasteful number, since it uses less digits than its factorization.

221332331211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263113941.

The product of its digits is 3888, while the sum is 29.

Adding to 221332331211131 its reverse (131112133233122), we get a palindrome (352444464444253).

The spelling of 221332331211131 in words is "two hundred twenty-one trillion, three hundred thirty-two billion, three hundred thirty-one million, two hundred eleven thousand, one hundred thirty-one".