210120101012 has 6 divisors (see below), whose sum is σ = 367710176778. Its totient is φ = 105060050504.

The previous prime is 210120100969. The next prime is 210120101057. The reversal of 210120101012 is 210101021012.

It can be written as a sum of positive squares in only one way, i.e., 121127665156 + 88992435856 = 348034^2 + 298316^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210120100984 and 210120101002.

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, 26265012623 + ... + 26265012630.

It is an arithmetic number, because the mean of its divisors is an integer number (61285029463).

Almost surely, 2^210120101012 is an apocalyptic number.

It is an amenable number.

210120101012 is a deficient number, since it is larger than the sum of its proper divisors (157590075766).

210120101012 is a wasteful number, since it uses less digits than its factorization.

210120101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52530025257 (or 52530025255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210120101012 its reverse (210101021012), we get a palindrome (420221122024).

The spelling of 210120101012 in words is "two hundred ten billion, one hundred twenty million, one hundred one thousand, twelve".