1001222001052 has 96 divisors (see below), whose sum is σ = 2264137182720. Its totient is φ = 376721452800.

The previous prime is 1001222001007. The next prime is 1001222001053. The reversal of 1001222001052 is 2501002221001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001222001053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 574 + ... + 1415077.

It is an arithmetic number, because the mean of its divisors is an integer number (23584762320).

Almost surely, 2^{1001222001052} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001222001052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132068591360).

1001222001052 is an abundant number, since it is smaller than the sum of its proper divisors (1262915181668).

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

1001222001052 is a wasteful number, since it uses less digits than its factorization.

1001222001052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415771 (or 1415769 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 1001222001052 its reverse (2501002221001), we get a palindrome (3502224222053).

The spelling of 1001222001052 in words is "one trillion, one billion, two hundred twenty-two million, one thousand, fifty-two".