121110101002111 has 16 divisors (see below), whose sum is σ = 134663395820800. Its totient is φ = 108163709199360.

The previous prime is 121110101002003. The next prime is 121110101002129. The reversal of 121110101002111 is 111200101011121.

It is a cyclic number.

It is not a de Polignac number, because 121110101002111 - 2⁷ = 121110101001983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121110101002091 and 121110101002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110101008111) 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, 31476336 + ... + 35113813.

It is an arithmetic number, because the mean of its divisors is an integer number (8416462238800).

Almost surely, 2^{121110101002111} is an apocalyptic number.

121110101002111 is a deficient number, since it is larger than the sum of its proper divisors (13553294818689).

121110101002111 is a wasteful number, since it uses less digits than its factorization.

121110101002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66594706.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 121110101002111 its reverse (111200101011121), we get a palindrome (232310202013232).

The spelling of 121110101002111 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred one million, two thousand, one hundred eleven".