201021100120012 has 12 divisors (see below), whose sum is σ = 351835588550880. Its totient is φ = 100496646248336.

The previous prime is 201021100119989. The next prime is 201021100120021. The reversal of 201021100120012 is 210021001120102.

It is a junction number, because it is equal to n+sod(n) for n = 201021100119974 and 201021100120001.

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, 3475920388 + ... + 3475978219.

It is an arithmetic number, because the mean of its divisors is an integer number (29319632379240).

Almost surely, 2^{201021100120012} is an apocalyptic number.

It is an amenable number.

201021100120012 is a deficient number, since it is larger than the sum of its proper divisors (150814488430868).

201021100120012 is a wasteful number, since it uses less digits than its factorization.

201021100120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951905840 (or 6951905838 counting only the distinct ones).

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

Adding to 201021100120012 its reverse (210021001120102), we get a palindrome (411042101240114).

The spelling of 201021100120012 in words is "two hundred one trillion, twenty-one billion, one hundred million, one hundred twenty thousand, twelve".