121002111122101 has 8 divisors (see below), whose sum is σ = 134492912534304. Its totient is φ = 107926411291920.

The previous prime is 121002111122027. The next prime is 121002111122107. The reversal of 121002111122101 is 101221111200121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121002111122101 - 2²¹ = 121002109024949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002111122107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103775394891 + ... + 103775396056.

It is an arithmetic number, because the mean of its divisors is an integer number (16811614066788).

Almost surely, 2^{121002111122101} is an apocalyptic number.

121002111122101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121002111122101 is a deficient number, since it is larger than the sum of its proper divisors (13490801412203).

121002111122101 is a wasteful number, since it uses less digits than its factorization.

121002111122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207550791011.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 121002111122101 its reverse (101221111200121), we get a palindrome (222223222322222).

The spelling of 121002111122101 in words is "one hundred twenty-one trillion, two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred one".