21211101202202 has 8 divisors (see below), whose sum is σ = 31967441622912. Its totient is φ = 10555287327900.

The previous prime is 21211101202189. The next prime is 21211101202217. The reversal of 21211101202202 is 20220210111212.

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, 25131636074 + ... + 25131636917.

It is an arithmetic number, because the mean of its divisors is an integer number (3995930202864).

Almost surely, 2^{21211101202202} is an apocalyptic number.

21211101202202 is a deficient number, since it is larger than the sum of its proper divisors (10756340420710).

21211101202202 is a wasteful number, since it uses less digits than its factorization.

21211101202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50263273204.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21211101202202 its reverse (20220210111212), we get a palindrome (41431311313414).

The spelling of 21211101202202 in words is "twenty-one trillion, two hundred eleven billion, one hundred one million, two hundred two thousand, two hundred two".