1222312031000 has 32 divisors (see below), whose sum is σ = 2860210154880. Its totient is φ = 488924812000.

The previous prime is 1222312030937. The next prime is 1222312031011. The reversal of 1222312031000 is 1302132221.

It is a super-2 number, since 2×1222312031000² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1222312031000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611155016 + ... + 611157015.

It is an arithmetic number, because the mean of its divisors is an integer number (89381567340).

Almost surely, 2^{1222312031000} is an apocalyptic number.

1222312031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222312031000 is an abundant number, since it is smaller than the sum of its proper divisors (1637898123880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222312031000 is a wasteful number, since it uses less digits than its factorization.

1222312031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222312052 (or 1222312038 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1222312031000 its reverse (1302132221), we get a palindrome (1223614163221).

The spelling of 1222312031000 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, thirty-one thousand".