222112212021211 has 16 divisors (see below), whose sum is σ = 236758152960000. Its totient is φ = 207768430178496.

The previous prime is 222112212021181. The next prime is 222112212021221. The reversal of 222112212021211 is 112120212211222.

It is a cyclic number.

It is not a de Polignac number, because 222112212021211 - 2⁷ = 222112212021083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222112212021221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90126051 + ... + 92557708.

It is an arithmetic number, because the mean of its divisors is an integer number (14797384560000).

Almost surely, 2^{222112212021211} is an apocalyptic number.

222112212021211 is a deficient number, since it is larger than the sum of its proper divisors (14645940938789).

222112212021211 is a wasteful number, since it uses less digits than its factorization.

222112212021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182684586.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 222112212021211 its reverse (112120212211222), we get a palindrome (334232424232433).

The spelling of 222112212021211 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twelve million, twenty-one thousand, two hundred eleven".