221000212102211 has 8 divisors (see below), whose sum is σ = 221156475724800. Its totient is φ = 220843953929800.

The previous prime is 221000212102193. The next prime is 221000212102213. The reversal of 221000212102211 is 112201212000122.

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

It is a cyclic number.

It is not a de Polignac number, because 221000212102211 - 2¹⁴ = 221000212085827 is a prime.

It is a super-2 number, since 2×221000212102211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221000212102211.

It is not an unprimeable number, because it can be changed into a prime (221000212102213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81546410 + ... + 84212928.

It is an arithmetic number, because the mean of its divisors is an integer number (27644559465600).

Almost surely, 2^{221000212102211} is an apocalyptic number.

221000212102211 is a deficient number, since it is larger than the sum of its proper divisors (156263622589).

221000212102211 is a wasteful number, since it uses less digits than its factorization.

221000212102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725089.

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

Adding to 221000212102211 its reverse (112201212000122), we get a palindrome (333201424102333).

The spelling of 221000212102211 in words is "two hundred twenty-one trillion, two hundred twelve million, one hundred two thousand, two hundred eleven".