121122112001 has 8 divisors (see below), whose sum is σ = 132266558208. Its totient is φ = 109999890000.

The previous prime is 121122111977. The next prime is 121122112003. The reversal of 121122112001 is 100211221121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121122112001 - 2³⁰ = 120048370177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121122112003) 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, 5544650 + ... + 5566451.

It is an arithmetic number, because the mean of its divisors is an integer number (16533319776).

Almost surely, 2^121122112001 is an apocalyptic number.

121122112001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121122112001 is a deficient number, since it is larger than the sum of its proper divisors (11144446207).

121122112001 is a wasteful number, since it uses less digits than its factorization.

121122112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112103.

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

Adding to 121122112001 its reverse (100211221121), we get a palindrome (221333333122).

The spelling of 121122112001 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, one".