12021112100212 has 6 divisors (see below), whose sum is σ = 21036946175378. Its totient is φ = 6010556050104.

The previous prime is 12021112100083. The next prime is 12021112100339. The reversal of 12021112100212 is 21200121112021.

It can be written as a sum of positive squares in only one way, i.e., 10745310224016 + 1275801876196 = 3278004^2 + 1129514^2 .

It is a super-2 number, since 2×12021112100212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502639012523 + ... + 1502639012530.

Almost surely, 2^{12021112100212} is an apocalyptic number.

It is an amenable number.

12021112100212 is a deficient number, since it is larger than the sum of its proper divisors (9015834075166).

12021112100212 is a wasteful number, since it uses less digits than its factorization.

12021112100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005278025057 (or 3005278025055 counting only the distinct ones).

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

Adding to 12021112100212 its reverse (21200121112021), we get a palindrome (33221233212233).

The spelling of 12021112100212 in words is "twelve trillion, twenty-one billion, one hundred twelve million, one hundred thousand, two hundred twelve".