2001102522 has 16 divisors (see below), whose sum is σ = 4047174720. Its totient is φ = 659539232.

The previous prime is 2001102497. The next prime is 2001102529. The reversal of 2001102522 is 2252011002.

It is a super-2 number, since 2×2001102522² = 8008822607109520968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2001102529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1873158 + ... + 1874225.

It is an arithmetic number, because the mean of its divisors is an integer number (252948420).

Almost surely, 2^2001102522 is an apocalyptic number.

2001102522 is an abundant number, since it is smaller than the sum of its proper divisors (2046072198).

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

2001102522 is a wasteful number, since it uses less digits than its factorization.

2001102522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747477.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2001102522 is about 44733.6844223679. The cubic root of 2001102522 is about 1260.1525224788.

Adding to 2001102522 its reverse (2252011002), we get a palindrome (4253113524).

The spelling of 2001102522 in words is "two billion, one million, one hundred two thousand, five hundred twenty-two".