12021011000212 has 12 divisors (see below), whose sum is σ = 21037945862836. Its totient is φ = 6010169325120.

The previous prime is 12021011000203. The next prime is 12021011000231. The reversal of 12021011000212 is 21200011012021.

It can be written as a sum of positive squares in 2 ways, for example, as 9504358731396 + 2516652268816 = 3082914^2 + 1586396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12021011000192 and 12021011000201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83963283 + ... + 84106330.

Almost surely, 2^{12021011000212} is an apocalyptic number.

It is an amenable number.

12021011000212 is a deficient number, since it is larger than the sum of its proper divisors (9016934862624).

12021011000212 is a wasteful number, since it uses less digits than its factorization.

12021011000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168087498 (or 168087496 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021011000212 its reverse (21200011012021), we get a palindrome (33221022012233).

The spelling of 12021011000212 in words is "twelve trillion, twenty-one billion, eleven million, two hundred twelve", and thus it is an aban number.