121100212112001 has 8 divisors (see below), whose sum is σ = 161467739804544. Its totient is φ = 80733079580400.

The previous prime is 121100212111999. The next prime is 121100212112021. The reversal of 121100212112001 is 100211212001121.

It is a happy number.

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

It is not a de Polignac number, because 121100212112001 - 2¹ = 121100212111999 is a prime.

It is a super-2 number, since 2×121100212112001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121100212112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98074425 + ... + 99301526.

It is an arithmetic number, because the mean of its divisors is an integer number (20183467475568).

Almost surely, 2^{121100212112001} is an apocalyptic number.

It is an amenable number.

121100212112001 is a deficient number, since it is larger than the sum of its proper divisors (40367527692543).

121100212112001 is a wasteful number, since it uses less digits than its factorization.

121100212112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197580471.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121100212112001 its reverse (100211212001121), we get a palindrome (221311424113122).

The spelling of 121100212112001 in words is "one hundred twenty-one trillion, one hundred billion, two hundred twelve million, one hundred twelve thousand, one".