1001222231320 has 16 divisors (see below), whose sum is σ = 2252750020560. Its totient is φ = 400488892512.

The previous prime is 1001222231287. The next prime is 1001222231363. The reversal of 1001222231320 is 231322221001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12515277852 + ... + 12515277931.

It is an arithmetic number, because the mean of its divisors is an integer number (140796876285).

Almost surely, 2^{1001222231320} is an apocalyptic number.

1001222231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001222231320 is an abundant number, since it is smaller than the sum of its proper divisors (1251527789240).

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

1001222231320 is a wasteful number, since it uses less digits than its factorization.

1001222231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25030555794 (or 25030555790 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1001222231320 its reverse (231322221001), we get a palindrome (1232544452321).

The spelling of 1001222231320 in words is "one trillion, one billion, two hundred twenty-two million, two hundred thirty-one thousand, three hundred twenty".