222121121200211 has 8 divisors (see below), whose sum is σ = 222156299613600. Its totient is φ = 222085945342080.

The previous prime is 222121121200193. The next prime is 222121121200217. The reversal of 222121121200211 is 112002121121222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222121121200211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222121121200217) 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, 177125981 + ... + 178375601.

It is an arithmetic number, because the mean of its divisors is an integer number (27769537451700).

Almost surely, 2^{222121121200211} is an apocalyptic number.

222121121200211 is a deficient number, since it is larger than the sum of its proper divisors (35178413389).

222121121200211 is a wasteful number, since it uses less digits than its factorization.

222121121200211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277629.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222121121200211 its reverse (112002121121222), we get a palindrome (334123242321433).

The spelling of 222121121200211 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".