2121002222012 has 6 divisors (see below), whose sum is σ = 3711753888528. Its totient is φ = 1060501111004.

The previous prime is 2121002221957. The next prime is 2121002222029. The reversal of 2121002222012 is 2102222001212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265125277748 + ... + 265125277755.

It is an arithmetic number, because the mean of its divisors is an integer number (618625648088).

Almost surely, 2^{2121002222012} is an apocalyptic number.

It is an amenable number.

2121002222012 is a deficient number, since it is larger than the sum of its proper divisors (1590751666516).

2121002222012 is a wasteful number, since it uses less digits than its factorization.

2121002222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530250555507 (or 530250555505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2121002222012 its reverse (2102222001212), we get a palindrome (4223224223224).

The spelling of 2121002222012 in words is "two trillion, one hundred twenty-one billion, two million, two hundred twenty-two thousand, twelve".