111021220212211 has 8 divisors (see below), whose sum is σ = 118148590280160. Its totient is φ = 103960151261568.

The previous prime is 111021220212181. The next prime is 111021220212223. The reversal of 111021220212211 is 112212022120111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111021220212211 - 2⁷ = 111021220212083 is a prime.

It is a super-2 number, since 2×111021220212211² (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 (111021220212241) 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, 16575275871 + ... + 16575282568.

It is an arithmetic number, because the mean of its divisors is an integer number (14768573785020).

Almost surely, 2^{111021220212211} is an apocalyptic number.

111021220212211 is a deficient number, since it is larger than the sum of its proper divisors (7127370067949).

111021220212211 is a wasteful number, since it uses less digits than its factorization.

111021220212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33150558653.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111021220212211 its reverse (112212022120111), we get a palindrome (223233242332322).

The spelling of 111021220212211 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty million, two hundred twelve thousand, two hundred eleven".