210001021020212 has 6 divisors (see below), whose sum is σ = 367501786785378. Its totient is φ = 105000510510104.

The previous prime is 210001021020191. The next prime is 210001021020221. The reversal of 210001021020212 is 212020120100012.

It can be written as a sum of positive squares in only one way, i.e., 109894672760356 + 100106348259856 = 10483066^2 + 10005316^2 .

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, 26250127627523 + ... + 26250127627530.

It is an arithmetic number, because the mean of its divisors is an integer number (61250297797563).

Almost surely, 2^{210001021020212} is an apocalyptic number.

It is an amenable number.

210001021020212 is a deficient number, since it is larger than the sum of its proper divisors (157500765765166).

210001021020212 is a wasteful number, since it uses less digits than its factorization.

210001021020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52500255255057 (or 52500255255055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210001021020212 its reverse (212020120100012), we get a palindrome (422021141120224).

The spelling of 210001021020212 in words is "two hundred ten trillion, one billion, twenty-one million, twenty thousand, two hundred twelve".