211200222022221 has 8 divisors (see below), whose sum is σ = 281600394700000. Its totient is φ = 140800098679632.

The previous prime is 211200222022217. The next prime is 211200222022313. The reversal of 211200222022221 is 122220222002112.

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

It is not a de Polignac number, because 211200222022221 - 2² = 211200222022217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200222022421) 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, 805675 + ... + 20568168.

It is an arithmetic number, because the mean of its divisors is an integer number (35200049337500).

Almost surely, 2^{211200222022221} is an apocalyptic number.

It is an amenable number.

211200222022221 is a deficient number, since it is larger than the sum of its proper divisors (70400172677779).

211200222022221 is a wasteful number, since it uses less digits than its factorization.

211200222022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24667595.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 211200222022221 its reverse (122220222002112), we get a palindrome (333420444024333).

The spelling of 211200222022221 in words is "two hundred eleven trillion, two hundred billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-one".