121112011211101 has 4 divisors (see below), whose sum is σ = 121287281850304. Its totient is φ = 120936740571900.

The previous prime is 121112011211077. The next prime is 121112011211123. The reversal of 121112011211101 is 101112110211121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121112011211101 - 2⁷ = 121112011210973 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 (121112011211701) 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, 87635318565 + ... + 87635319946.

It is an arithmetic number, because the mean of its divisors is an integer number (30321820462576).

Almost surely, 2^{121112011211101} is an apocalyptic number.

It is an amenable number.

121112011211101 is a deficient number, since it is larger than the sum of its proper divisors (175270639203).

121112011211101 is an equidigital number, since it uses as much as digits as its factorization.

121112011211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175270639202.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 121112011211101 its reverse (101112110211121), we get a palindrome (222224121422222).

The spelling of 121112011211101 in words is "one hundred twenty-one trillion, one hundred twelve billion, eleven million, two hundred eleven thousand, one hundred one".