112121011222121 has 8 divisors (see below), whose sum is σ = 122314538446464. Its totient is φ = 101927602001520.

The previous prime is 112121011222093. The next prime is 112121011222159. The reversal of 112121011222121 is 121222110121211.

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 a de Polignac number, because none of the positive numbers 2^k-112121011222121 is a prime.

It is a super-2 number, since 2×112121011222121² (a number of 29 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 = 112121011222093 and 112121011222102.

It is not an unprimeable number, because it can be changed into a prime (112121011222021) 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, 27508406 + ... + 31320191.

It is an arithmetic number, because the mean of its divisors is an integer number (15289317305808).

Almost surely, 2^{112121011222121} is an apocalyptic number.

112121011222121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112121011222121 is a deficient number, since it is larger than the sum of its proper divisors (10193527224343).

112121011222121 is a wasteful number, since it uses less digits than its factorization.

112121011222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59001871.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 112121011222121 its reverse (121222110121211), we get a palindrome (233343121343332).

The spelling of 112121011222121 in words is "one hundred twelve trillion, one hundred twenty-one billion, eleven million, two hundred twenty-two thousand, one hundred twenty-one".