121121112101 has 8 divisors (see below), whose sum is σ = 132136231584. Its totient is φ = 110106677520.

The previous prime is 121121112071. The next prime is 121121112103. The reversal of 121121112101 is 101211121121.

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 121121112101 - 2²⁶ = 121054003237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121112103) 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, 241895 + ... + 548411.

It is an arithmetic number, because the mean of its divisors is an integer number (16517028948).

Almost surely, 2^121121112101 is an apocalyptic number.

121121112101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121121112101 is a deficient number, since it is larger than the sum of its proper divisors (11015119483).

121121112101 is a wasteful number, since it uses less digits than its factorization.

121121112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342451.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121121112101 its reverse (101211121121), we get a palindrome (222332233222).

The spelling of 121121112101 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twelve thousand, one hundred one".