121112220021101 has 8 divisors (see below), whose sum is σ = 121149007062720. Its totient is φ = 121075436066112.

The previous prime is 121112220021077. The next prime is 121112220021103. The reversal of 121112220021101 is 101120022211121.

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-121112220021101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121112220021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112220021103) 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, 78963941 + ... + 80483093.

It is an arithmetic number, because the mean of its divisors is an integer number (15143625882840).

Almost surely, 2^{121112220021101} is an apocalyptic number.

It is an amenable number.

121112220021101 is a deficient number, since it is larger than the sum of its proper divisors (36787041619).

121112220021101 is a wasteful number, since it uses less digits than its factorization.

121112220021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543315.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121112220021101 its reverse (101120022211121), we get a palindrome (222232242232222).

The spelling of 121112220021101 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred twenty million, twenty-one thousand, one hundred one".