211101221222222 has 8 divisors (see below), whose sum is σ = 316953692496000. Its totient is φ = 105449990390224.

The previous prime is 211101221222183. The next prime is 211101221222303. The reversal of 211101221222222 is 222222122101112.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50310107822 + ... + 50310112017.

It is an arithmetic number, because the mean of its divisors is an integer number (39619211562000).

Almost surely, 2^{211101221222222} is an apocalyptic number.

211101221222222 is a deficient number, since it is larger than the sum of its proper divisors (105852471273778).

211101221222222 is a wasteful number, since it uses less digits than its factorization.

211101221222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100620220890.

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

Adding to 211101221222222 its reverse (222222122101112), we get a palindrome (433323343323334).

The spelling of 211101221222222 in words is "two hundred eleven trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".