121101000202111 has 16 divisors (see below), whose sum is σ = 129179077413120. Its totient is φ = 113130952744320.

The previous prime is 121101000202033. The next prime is 121101000202121. The reversal of 121101000202111 is 111202000101121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121101000202111 - 2²⁷ = 121100865984383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121101000202091 and 121101000202100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101000202121) 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, 28903821 + ... + 32827318.

It is an arithmetic number, because the mean of its divisors is an integer number (8073692338320).

Almost surely, 2^{121101000202111} is an apocalyptic number.

121101000202111 is a deficient number, since it is larger than the sum of its proper divisors (8078077211009).

121101000202111 is a wasteful number, since it uses less digits than its factorization.

121101000202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61732014.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101000202111 its reverse (111202000101121), we get a palindrome (232303000303232).

The spelling of 121101000202111 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred two thousand, one hundred eleven".