1001000031222 has 16 divisors (see below), whose sum is σ = 2002131343872. Its totient is φ = 333644796840.

The previous prime is 1001000031181. The next prime is 1001000031223. The reversal of 1001000031222 is 2221300001001.

It is a junction number, because it is equal to n+sod(n) for n = 1001000031198 and 1001000031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5370798 + ... + 5554049.

It is an arithmetic number, because the mean of its divisors is an integer number (125133208992).

Almost surely, 2^{1001000031222} is an apocalyptic number.

1001000031222 is an abundant number, since it is smaller than the sum of its proper divisors (1001131312650).

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

1001000031222 is a wasteful number, since it uses less digits than its factorization.

1001000031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10940123.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1001000031222 its reverse (2221300001001), we get a palindrome (3222300032223).

The spelling of 1001000031222 in words is "one trillion, one billion, thirty-one thousand, two hundred twenty-two".