121102211010121 has 4 divisors (see below), whose sum is σ = 132111502920144. Its totient is φ = 110092919100100.

The previous prime is 121102211010107. The next prime is 121102211010133. The reversal of 121102211010121 is 121010112201121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121102211010121 - 2⁵ = 121102211010089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121102211010095 and 121102211010104.

It is not an unprimeable number, because it can be changed into a prime (121102211010821) 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, 5504645954995 + ... + 5504645955016.

It is an arithmetic number, because the mean of its divisors is an integer number (33027875730036).

Almost surely, 2^{121102211010121} is an apocalyptic number.

121102211010121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121102211010121 is a deficient number, since it is larger than the sum of its proper divisors (11009291910023).

121102211010121 is a wasteful number, since it uses less digits than its factorization.

121102211010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009291910022.

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

Adding to 121102211010121 its reverse (121010112201121), we get a palindrome (242112323211242).

The spelling of 121102211010121 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, ten thousand, one hundred twenty-one".