121120102202111 has 4 divisors (see below), whose sum is σ = 121121266956072. Its totient is φ = 121118937448152.

The previous prime is 121120102202101. The next prime is 121120102202129. The reversal of 121120102202111 is 111202201021121.

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 121120102202111 - 2²² = 121120098007807 is a prime.

It is a super-2 number, since 2×121120102202111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121120102202111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120102202101) 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, 582220985 + ... + 582428978.

It is an arithmetic number, because the mean of its divisors is an integer number (30280316739018).

Almost surely, 2^{121120102202111} is an apocalyptic number.

121120102202111 is a deficient number, since it is larger than the sum of its proper divisors (1164753961).

121120102202111 is a wasteful number, since it uses less digits than its factorization.

121120102202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164753960.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121120102202111 its reverse (111202201021121), we get a palindrome (232322303223232).

The spelling of 121120102202111 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred two million, two hundred two thousand, one hundred eleven".