101222212211 has 4 divisors (see below), whose sum is σ = 102019237632. Its totient is φ = 100425186792.

The previous prime is 101222212151. The next prime is 101222212249. The reversal of 101222212211 is 112212222101.

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-101222212211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101222212211.

It is not an unprimeable number, because it can be changed into a prime (101222212261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398512520 + ... + 398512773.

It is an arithmetic number, because the mean of its divisors is an integer number (25504809408).

Almost surely, 2^101222212211 is an apocalyptic number.

101222212211 is a deficient number, since it is larger than the sum of its proper divisors (797025421).

101222212211 is an equidigital number, since it uses as much as digits as its factorization.

101222212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797025420.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101222212211 its reverse (112212222101), we get a palindrome (213434434312).

The spelling of 101222212211 in words is "one hundred one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred eleven".