111022120121 has 8 divisors (see below), whose sum is σ = 121118318688. Its totient is φ = 100926468000.

The previous prime is 111022120087. The next prime is 111022120189. The reversal of 111022120121 is 121021220111.

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 111022120121 - 2³⁰ = 109948378297 is a prime.

It is a super-2 number, since 2×111022120121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111022120096 and 111022120105.

It is not an unprimeable number, because it can be changed into a prime (111022122121) 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, 369866 + ... + 599036.

It is an arithmetic number, because the mean of its divisors is an integer number (15139789836).

Almost surely, 2^111022120121 is an apocalyptic number.

111022120121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111022120121 is a deficient number, since it is larger than the sum of its proper divisors (10096198567).

111022120121 is a wasteful number, since it uses less digits than its factorization.

111022120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273223.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111022120121 its reverse (121021220111), we get a palindrome (232043340232).

The spelling of 111022120121 in words is "one hundred eleven billion, twenty-two million, one hundred twenty thousand, one hundred twenty-one".