11221331331031 has 8 divisors (see below), whose sum is σ = 11548275072800. Its totient is φ = 10895633090208.

The previous prime is 11221331331019. The next prime is 11221331331083. The reversal of 11221331331031 is 13013313312211.

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

It is a cyclic number.

It is not a de Polignac number, because 11221331331031 - 2¹⁵ = 11221331298263 is a prime.

It is a super-2 number, since 2×11221331331031² (a number of 27 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 = 11221331330987 and 11221331331005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221331338031) 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, 311356956 + ... + 311392993.

It is an arithmetic number, because the mean of its divisors is an integer number (1443534384100).

Almost surely, 2^{11221331331031} is an apocalyptic number.

11221331331031 is a deficient number, since it is larger than the sum of its proper divisors (326943741769).

11221331331031 is an equidigital number, since it uses as much as digits as its factorization.

11221331331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622750473.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11221331331031 its reverse (13013313312211), we get a palindrome (24234644643242).

The spelling of 11221331331031 in words is "eleven trillion, two hundred twenty-one billion, three hundred thirty-one million, three hundred thirty-one thousand, thirty-one".