2112212203031 has 4 divisors (see below), whose sum is σ = 2413956803472. Its totient is φ = 1810467602592.

The previous prime is 2112212203007. The next prime is 2112212203043. The reversal of 2112212203031 is 1303022122112.

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 2112212203031 - 2¹⁸ = 2112211940887 is a prime.

It is a super-2 number, since 2×2112212203031² (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 = 2112212202994 and 2112212203012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112212203001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 150872300210 + ... + 150872300223.

It is an arithmetic number, because the mean of its divisors is an integer number (603489200868).

Almost surely, 2^{2112212203031} is an apocalyptic number.

2112212203031 is a deficient number, since it is larger than the sum of its proper divisors (301744600441).

2112212203031 is an equidigital number, since it uses as much as digits as its factorization.

2112212203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301744600440.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2112212203031 its reverse (1303022122112), we get a palindrome (3415234325143).

The spelling of 2112212203031 in words is "two trillion, one hundred twelve billion, two hundred twelve million, two hundred three thousand, thirty-one".