222212121202211 has 8 divisors (see below), whose sum is σ = 253956812018784. Its totient is φ = 190467455904000.

The previous prime is 222212121202157. The next prime is 222212121202271. The reversal of 222212121202211 is 112202121212222.

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-222212121202211 is a prime.

It is a super-2 number, since 2×222212121202211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222212121202271) 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, 19024211 + ... + 28396211.

It is an arithmetic number, because the mean of its divisors is an integer number (31744601502348).

Almost surely, 2^{222212121202211} is an apocalyptic number.

222212121202211 is a deficient number, since it is larger than the sum of its proper divisors (31744690816573).

222212121202211 is an equidigital number, since it uses as much as digits as its factorization.

222212121202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12759181.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 222212121202211 its reverse (112202121212222), we get a palindrome (334414242414433).

The spelling of 222212121202211 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, two hundred two thousand, two hundred eleven".