111202221111211 has 16 divisors (see below), whose sum is σ = 113816348515584. Its totient is φ = 108589371768864.

The previous prime is 111202221111209. The next prime is 111202221111269. The reversal of 111202221111211 is 112111122202111.

It is a cyclic number.

It is not a de Polignac number, because 111202221111211 - 2¹ = 111202221111209 is a prime.

It is a super-2 number, since 2×111202221111211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111202221111511) 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, 3895394040 + ... + 3895422586.

It is an arithmetic number, because the mean of its divisors is an integer number (7113521782224).

Almost surely, 2^{111202221111211} is an apocalyptic number.

111202221111211 is a deficient number, since it is larger than the sum of its proper divisors (2614127404373).

111202221111211 is a wasteful number, since it uses less digits than its factorization.

111202221111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47730.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111202221111211 its reverse (112111122202111), we get a palindrome (223313343313322).

The spelling of 111202221111211 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-one million, one hundred eleven thousand, two hundred eleven".