121101111022111 has 8 divisors (see below), whose sum is σ = 132239949955200. Its totient is φ = 109983879926040.

The previous prime is 121101111022097. The next prime is 121101111022139. The reversal of 121101111022111 is 111220111101121.

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 121101111022111 - 2¹⁷ = 121101110891039 is a prime.

It is a super-2 number, since 2×121101111022111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101111026111) 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, 5401947531 + ... + 5401969948.

It is an arithmetic number, because the mean of its divisors is an integer number (16529993744400).

Almost surely, 2^{121101111022111} is an apocalyptic number.

121101111022111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121101111022111 is a deficient number, since it is larger than the sum of its proper divisors (11138838933089).

121101111022111 is a wasteful number, since it uses less digits than its factorization.

121101111022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803918509.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 121101111022111 its reverse (111220111101121), we get a palindrome (232321222123232).

The spelling of 121101111022111 in words is "one hundred twenty-one trillion, one hundred one billion, one hundred eleven million, twenty-two thousand, one hundred eleven".