121200110000011 has 16 divisors (see below), whose sum is σ = 139847619788800. Its totient is φ = 102886753674528.

The previous prime is 121200109999993. The next prime is 121200110000017. The reversal of 121200110000011 is 110000011002121.

It is a cyclic number.

It is not a de Polignac number, because 121200110000011 - 2⁵ = 121200109999979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200110000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33764355 + ... + 37181068.

It is an arithmetic number, because the mean of its divisors is an integer number (8740476236800).

Almost surely, 2^{121200110000011} is an apocalyptic number.

121200110000011 is a deficient number, since it is larger than the sum of its proper divisors (18647509788789).

121200110000011 is a wasteful number, since it uses less digits than its factorization.

121200110000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70947778.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121200110000011 its reverse (110000011002121), we get a palindrome (231200121002132).

The spelling of 121200110000011 in words is "one hundred twenty-one trillion, two hundred billion, one hundred ten million, eleven", and thus it is an aban number.