121100012201 has 4 divisors (see below), whose sum is σ = 138400013952. Its totient is φ = 103800010452.

The previous prime is 121100012167. The next prime is 121100012233. The reversal of 121100012201 is 102210001121.

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: 102210001121 = 197 ⋅518832493.

It is a cyclic number.

It is not a de Polignac number, because 121100012201 - 2¹⁰ = 121100011177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121100012291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8650000865 + ... + 8650000878.

It is an arithmetic number, because the mean of its divisors is an integer number (34600003488).

Almost surely, 2^121100012201 is an apocalyptic number.

It is an amenable number.

121100012201 is a deficient number, since it is larger than the sum of its proper divisors (17300001751).

121100012201 is an equidigital number, since it uses as much as digits as its factorization.

121100012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17300001750.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121100012201 its reverse (102210001121), we get a palindrome (223310013322).

The spelling of 121100012201 in words is "one hundred twenty-one billion, one hundred million, twelve thousand, two hundred one".