111021222212211 has 16 divisors (see below), whose sum is σ = 156933224311808. Its totient is φ = 69690741055200.

The previous prime is 111021222212179. The next prime is 111021222212231. The reversal of 111021222212211 is 112212222120111.

It is not a de Polignac number, because 111021222212211 - 2⁵ = 111021222212179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111021222212231) 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, 16132112545 + ... + 16132119426.

It is an arithmetic number, because the mean of its divisors is an integer number (9808326519488).

Almost surely, 2^{111021222212211} is an apocalyptic number.

111021222212211 is a deficient number, since it is larger than the sum of its proper divisors (45912002099597).

111021222212211 is a wasteful number, since it uses less digits than its factorization.

111021222212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32264232042.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111021222212211 its reverse (112212222120111), we get a palindrome (223233444332322).

The spelling of 111021222212211 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred eleven".