2001022010122 has 8 divisors (see below), whose sum is σ = 3178093780836. Its totient is φ = 941657416512.

The previous prime is 2001022010087. The next prime is 2001022010129. The reversal of 2001022010122 is 2210102201002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1999195217041 + 1826793081 = 1413929^2 + 42741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2001022010129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29426794233 + ... + 29426794300.

Almost surely, 2^{2001022010122} is an apocalyptic number.

2001022010122 is a deficient number, since it is larger than the sum of its proper divisors (1177071770714).

2001022010122 is a wasteful number, since it uses less digits than its factorization.

2001022010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58853588552.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001022010122 its reverse (2210102201002), we get a palindrome (4211124211124).

The spelling of 2001022010122 in words is "two trillion, one billion, twenty-two million, ten thousand, one hundred twenty-two".