121010201000111 has 4 divisors (see below), whose sum is σ = 122468155229112. Its totient is φ = 119552246771112.

The previous prime is 121010201000093. The next prime is 121010201000131. The reversal of 121010201000111 is 111000102010121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121010201000111 - 2²⁶ = 121010133891247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121010201000092 and 121010201000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010201000131) 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, 728977114376 + ... + 728977114541.

It is an arithmetic number, because the mean of its divisors is an integer number (30617038807278).

Almost surely, 2^{121010201000111} is an apocalyptic number.

121010201000111 is a deficient number, since it is larger than the sum of its proper divisors (1457954229001).

121010201000111 is an equidigital number, since it uses as much as digits as its factorization.

121010201000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457954229000.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121010201000111 its reverse (111000102010121), we get a palindrome (232010303010232).

The spelling of 121010201000111 in words is "one hundred twenty-one trillion, ten billion, two hundred one million, one hundred eleven", and thus it is an aban number.