21210112011202 has 8 divisors (see below), whose sum is σ = 32336728148412. Its totient is φ = 10431202628400.

The previous prime is 21210112011169. The next prime is 21210112011227. The reversal of 21210112011202 is 20211021101212.

It can be written as a sum of positive squares in 2 ways, for example, as 21051111246201 + 159000765001 = 4588149^2 + 398749^2 .

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

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, 86926688449 + ... + 86926688692.

Almost surely, 2^{21210112011202} is an apocalyptic number.

21210112011202 is a deficient number, since it is larger than the sum of its proper divisors (11126616137210).

21210112011202 is a wasteful number, since it uses less digits than its factorization.

21210112011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173853377204.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21210112011202 its reverse (20211021101212), we get a palindrome (41421133112414).

The spelling of 21210112011202 in words is "twenty-one trillion, two hundred ten billion, one hundred twelve million, eleven thousand, two hundred two".