121022112001 has 4 divisors (see below), whose sum is σ = 138310985152. Its totient is φ = 103733238852.

The previous prime is 121022111999. The next prime is 121022112031. The reversal of 121022112001 is 100211220121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100211220121 = 176431 ⋅567991.

It is a cyclic number.

It is not a de Polignac number, because 121022112001 - 2¹ = 121022111999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022112031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8644436565 + ... + 8644436578.

It is an arithmetic number, because the mean of its divisors is an integer number (34577746288).

Almost surely, 2^121022112001 is an apocalyptic number.

It is an amenable number.

121022112001 is a deficient number, since it is larger than the sum of its proper divisors (17288873151).

121022112001 is an equidigital number, since it uses as much as digits as its factorization.

121022112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288873150.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121022112001 its reverse (100211220121), we get a palindrome (221233332122).

The spelling of 121022112001 in words is "one hundred twenty-one billion, twenty-two million, one hundred twelve thousand, one".