1001222000988 has 48 divisors (see below), whose sum is σ = 2553631992576. Its totient is φ = 302797404160.

The previous prime is 1001222000971. The next prime is 1001222001001. The reversal of 1001222000988 is 8890002221001.

It is a super-2 number, since 2×1001222000988² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7473381 + ... + 7606172.

It is an arithmetic number, because the mean of its divisors is an integer number (53200666512).

Almost surely, 2^{1001222000988} is an apocalyptic number.

It is an amenable number.

1001222000988 is an abundant number, since it is smaller than the sum of its proper divisors (1552409991588).

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

1001222000988 is a wasteful number, since it uses less digits than its factorization.

1001222000988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15080074 (or 15080072 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

Adding to 1001222000988 its reverse (8890002221001), we get a palindrome (9891224221989).

The spelling of 1001222000988 in words is "one trillion, one billion, two hundred twenty-two million, nine hundred eighty-eight", and thus it is an aban number.