2001512022 has 16 divisors (see below), whose sum is σ = 4213709760. Its totient is φ = 632056392.

The previous prime is 2001512021. The next prime is 2001512027. The reversal of 2001512022 is 2202151002.

It is a junction number, because it is equal to n+sod(n) for n = 2001511992 and 2001512010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001512021) 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, 8778448 + ... + 8778675.

It is an arithmetic number, because the mean of its divisors is an integer number (263356860).

Almost surely, 2^2001512022 is an apocalyptic number.

2001512022 is an abundant number, since it is smaller than the sum of its proper divisors (2212197738).

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

2001512022 is a wasteful number, since it uses less digits than its factorization.

2001512022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17557147.

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

The square root of 2001512022 is about 44738.2612760040. The cubic root of 2001512022 is about 1260.2384746404.

Adding to 2001512022 its reverse (2202151002), we get a palindrome (4203663024).

The spelling of 2001512022 in words is "two billion, one million, five hundred twelve thousand, twenty-two".