200120121021012 has 24 divisors (see below), whose sum is σ = 466950349098912. Its totient is φ = 66706221285600.

The previous prime is 200120121021011. The next prime is 200120121021013. The reversal of 200120121021012 is 210120121021002.

It is an interprime number because it is at equal distance from previous prime (200120121021011) and next prime (200120121021013).

It is a junction number, because it is equal to n+sod(n) for n = 200120121020982 and 200120121021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120121021011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58996539 + ... + 62296322.

It is an arithmetic number, because the mean of its divisors is an integer number (19456264545788).

Almost surely, 2^{200120121021012} is an apocalyptic number.

It is an amenable number.

200120121021012 is an abundant number, since it is smaller than the sum of its proper divisors (266830228077900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200120121021012 is a wasteful number, since it uses less digits than its factorization.

200120121021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121430359 (or 121430357 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 200120121021012 its reverse (210120121021002), we get a palindrome (410240242042014).

The spelling of 200120121021012 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, twelve".