20110222111211 has 8 divisors (see below), whose sum is σ = 20214680868480. Its totient is φ = 20005766042112.

The previous prime is 20110222111193. The next prime is 20110222111241. The reversal of 20110222111211 is 11211122201102.

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-20110222111211 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 20110222111211.

It is not an unprimeable number, because it can be changed into a prime (20110222111241) 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, 15313670 + ... + 16574948.

It is an arithmetic number, because the mean of its divisors is an integer number (2526835108560).

Almost surely, 2^{20110222111211} is an apocalyptic number.

20110222111211 is a deficient number, since it is larger than the sum of its proper divisors (104458757269).

20110222111211 is a wasteful number, since it uses less digits than its factorization.

20110222111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344085.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20110222111211 its reverse (11211122201102), we get a palindrome (31321344312313).

The spelling of 20110222111211 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, one hundred eleven thousand, two hundred eleven".