11212212132331 has 4 divisors (see below), whose sum is σ = 12813956722672. Its totient is φ = 9610467541992.

The previous prime is 11212212132281. The next prime is 11212212132347. The reversal of 11212212132331 is 13323121221211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11212212132331 - 2¹⁹ = 11212211608043 is a prime.

It is a super-2 number, since 2×11212212132331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212212132296 and 11212212132305.

It is not an unprimeable number, because it can be changed into a prime (11212212132131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800872295160 + ... + 800872295173.

It is an arithmetic number, because the mean of its divisors is an integer number (3203489180668).

Almost surely, 2^{11212212132331} is an apocalyptic number.

11212212132331 is a deficient number, since it is larger than the sum of its proper divisors (1601744590341).

11212212132331 is an equidigital number, since it uses as much as digits as its factorization.

11212212132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601744590340.

The product of its digits is 864, while the sum is 25.

Adding to 11212212132331 its reverse (13323121221211), we get a palindrome (24535333353542).

The spelling of 11212212132331 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million, one hundred thirty-two thousand, three hundred thirty-one".