21211200010202 has 8 divisors (see below), whose sum is σ = 31816833995700. Its totient is φ = 10605588678304.

The previous prime is 21211200010201. The next prime is 21211200010213. The reversal of 21211200010202 is 20201000211212.

It can be written as a sum of positive squares in 2 ways, for example, as 19391261409601 + 1819938600601 = 4403551^2 + 1349051^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21211200010201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3088427 + ... + 7208382.

Almost surely, 2^{21211200010202} is an apocalyptic number.

21211200010202 is a deficient number, since it is larger than the sum of its proper divisors (10605633985498).

21211200010202 is a wasteful number, since it uses less digits than its factorization.

21211200010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11326800.

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

Adding to 21211200010202 its reverse (20201000211212), we get a palindrome (41412200221414).

The spelling of 21211200010202 in words is "twenty-one trillion, two hundred eleven billion, two hundred million, ten thousand, two hundred two".