20121010211210 has 8 divisors (see below), whose sum is σ = 36217818380196. Its totient is φ = 8048404084480.

The previous prime is 20121010211191. The next prime is 20121010211261. The reversal of 20121010211210 is 1211201012102.

It can be written as a sum of positive squares in 2 ways, for example, as 19730448958609 + 390561252601 = 4441897^2 + 624949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006050510551 + ... + 1006050510570.

Almost surely, 2^{20121010211210} is an apocalyptic number.

20121010211210 is a deficient number, since it is larger than the sum of its proper divisors (16096808168986).

20121010211210 is a wasteful number, since it uses less digits than its factorization.

20121010211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012101021128.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20121010211210 its reverse (1211201012102), we get a palindrome (21332211223312).

The spelling of 20121010211210 in words is "twenty trillion, one hundred twenty-one billion, ten million, two hundred eleven thousand, two hundred ten".