1012121220212 has 36 divisors (see below), whose sum is σ = 1855788987360. Its totient is φ = 482954893872.

The previous prime is 1012121220193. The next prime is 1012121220289. The reversal of 1012121220212 is 2120221212101.

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 11 ways as a sum of consecutive naturals, for example, 384143 + ... + 1473705.

Almost surely, 2^{1012121220212} is an apocalyptic number.

It is an amenable number.

1012121220212 is a deficient number, since it is larger than the sum of its proper divisors (843667767148).

1012121220212 is a wasteful number, since it uses less digits than its factorization.

1012121220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090052 (or 1090027 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1012121220212 its reverse (2120221212101), we get a palindrome (3132342432313).

The spelling of 1012121220212 in words is "one trillion, twelve billion, one hundred twenty-one million, two hundred twenty thousand, two hundred twelve".