121200211101 has 16 divisors (see below), whose sum is σ = 170122365440. Its totient is φ = 76539939120.

The previous prime is 121200211049. The next prime is 121200211109. The reversal of 121200211101 is 101112002121.

It is not a de Polignac number, because 121200211101 - 2⁷ = 121200210973 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 (121200211109) 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 15 ways as a sum of consecutive naturals, for example, 508086 + ... + 707496.

It is an arithmetic number, because the mean of its divisors is an integer number (10632647840).

Almost surely, 2^121200211101 is an apocalyptic number.

It is an amenable number.

121200211101 is a deficient number, since it is larger than the sum of its proper divisors (48922154339).

121200211101 is a wasteful number, since it uses less digits than its factorization.

121200211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210096.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121200211101 its reverse (101112002121), we get a palindrome (222312213222).

The spelling of 121200211101 in words is "one hundred twenty-one billion, two hundred million, two hundred eleven thousand, one hundred one".