210101021012 has 12 divisors (see below), whose sum is σ = 367681978356. Its totient is φ = 105049027200.

The previous prime is 210101021003. The next prime is 210101021033. The reversal of 210101021012 is 210120101012.

It can be written as a sum of positive squares in 2 ways, for example, as 91182257296 + 118918763716 = 301964^2 + 344846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210101020984 and 210101021002.

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, 13973 + ... + 648380.

It is an arithmetic number, because the mean of its divisors is an integer number (30640164863).

Almost surely, 2^210101021012 is an apocalyptic number.

It is an amenable number.

210101021012 is a deficient number, since it is larger than the sum of its proper divisors (157580957344).

210101021012 is a wasteful number, since it uses less digits than its factorization.

210101021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741658 (or 741656 counting only the distinct ones).

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

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

The spelling of 210101021012 in words is "two hundred ten billion, one hundred one million, twenty-one thousand, twelve".