12101221010212 has 6 divisors (see below), whose sum is σ = 21177136767878. Its totient is φ = 6050610505104.

The previous prime is 12101221010159. The next prime is 12101221010231. The reversal of 12101221010212 is 21201012210121.

It can be written as a sum of positive squares in only one way, i.e., 8837504166436 + 3263716843776 = 2972794^2 + 1806576^2 .

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 as a sum of consecutive naturals, namely, 1512652626273 + ... + 1512652626280.

Almost surely, 2^{12101221010212} is an apocalyptic number.

It is an amenable number.

12101221010212 is a deficient number, since it is larger than the sum of its proper divisors (9075915757666).

12101221010212 is a wasteful number, since it uses less digits than its factorization.

12101221010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3025305252557 (or 3025305252555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101221010212 its reverse (21201012210121), we get a palindrome (33302233220333).

The spelling of 12101221010212 in words is "twelve trillion, one hundred one billion, two hundred twenty-one million, ten thousand, two hundred twelve".