1121222110031 has 4 divisors (see below), whose sum is σ = 1121225094864. Its totient is φ = 1121219125200.

The previous prime is 1121222110009. The next prime is 1121222110087. The reversal of 1121222110031 is 1300112221211.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121222110031 is a prime.

It is a super-2 number, since 2×1121222110031² (a number of 25 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 = 1121222109991 and 1121222110009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222110331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 831350 + ... + 1712771.

It is an arithmetic number, because the mean of its divisors is an integer number (280306273716).

Almost surely, 2^{1121222110031} is an apocalyptic number.

1121222110031 is a deficient number, since it is larger than the sum of its proper divisors (2984833).

1121222110031 is an equidigital number, since it uses as much as digits as its factorization.

1121222110031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984832.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1121222110031 its reverse (1300112221211), we get a palindrome (2421334331242).

The spelling of 1121222110031 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred ten thousand, thirty-one".