121001201000212 has 24 divisors (see below), whose sum is σ = 228615134887496. Its totient is φ = 55706036335488.

The previous prime is 121001201000153. The next prime is 121001201000213. The reversal of 121001201000212 is 212000102100121.

It can be written as a sum of positive squares in 4 ways, for example, as 6915816482436 + 114085384517776 = 2629794^2 + 10681076^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 121001201000192 and 121001201000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001201000213) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 2930642043 + ... + 2930683330.

Almost surely, 2^{121001201000212} is an apocalyptic number.

It is an amenable number.

121001201000212 is a deficient number, since it is larger than the sum of its proper divisors (107613933887284).

121001201000212 is a wasteful number, since it uses less digits than its factorization.

121001201000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861325787 (or 5861325785 counting only the distinct ones).

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

Adding to 121001201000212 its reverse (212000102100121), we get a palindrome (333001303100333).

The spelling of 121001201000212 in words is "one hundred twenty-one trillion, one billion, two hundred one million, two hundred twelve", and thus it is an aban number.