2001122002012 has 48 divisors (see below), whose sum is σ = 4081809150720. Its totient is φ = 840657831552.

The previous prime is 2001122001979. The next prime is 2001122002049. The reversal of 2001122002012 is 2102002211002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001122001983 and 2001122002001.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1172193 + ... + 2318680.

It is an arithmetic number, because the mean of its divisors is an integer number (85037690640).

Almost surely, 2^{2001122002012} is an apocalyptic number.

It is an amenable number.

2001122002012 is an abundant number, since it is smaller than the sum of its proper divisors (2080687148708).

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

2001122002012 is a wasteful number, since it uses less digits than its factorization.

2001122002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491290 (or 3491288 counting only the distinct ones).

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

Adding to 2001122002012 its reverse (2102002211002), we get a palindrome (4103124213014).

The spelling of 2001122002012 in words is "two trillion, one billion, one hundred twenty-two million, two thousand, twelve".