2001212002012 has 24 divisors (see below), whose sum is σ = 3527834047920. Its totient is φ = 993260039040.

The previous prime is 2001212001979. The next prime is 2001212002073. The reversal of 2001212002012 is 2102002121002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001212001983 and 2001212002001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15751462 + ... + 15878002.

It is an arithmetic number, because the mean of its divisors is an integer number (146993085330).

Almost surely, 2^{2001212002012} is an apocalyptic number.

It is an amenable number.

2001212002012 is a deficient number, since it is larger than the sum of its proper divisors (1526622045908).

2001212002012 is a wasteful number, since it uses less digits than its factorization.

2001212002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155541 (or 155539 counting only the distinct ones).

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

Adding to 2001212002012 its reverse (2102002121002), we get a palindrome (4103214123014).

The spelling of 2001212002012 in words is "two trillion, one billion, two hundred twelve million, two thousand, twelve".