222220120021211 has 4 divisors (see below), whose sum is σ = 239313975407472. Its totient is φ = 205126264634952.

The previous prime is 222220120021171. The next prime is 222220120021223. The reversal of 222220120021211 is 112120021022222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222220120021211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220120021241) 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, 8546927693111 + ... + 8546927693136.

It is an arithmetic number, because the mean of its divisors is an integer number (59828493851868).

Almost surely, 2^{222220120021211} is an apocalyptic number.

222220120021211 is a deficient number, since it is larger than the sum of its proper divisors (17093855386261).

222220120021211 is a wasteful number, since it uses less digits than its factorization.

222220120021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17093855386260.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222220120021211 its reverse (112120021022222), we get a palindrome (334340141043433).

The spelling of 222220120021211 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty million, twenty-one thousand, two hundred eleven".