121102122121 has 4 divisors (see below), whose sum is σ = 121104509200. Its totient is φ = 121099735044.

The previous prime is 121102122107. The next prime is 121102122217. The reversal of 121102122121 is 121221201121.

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 121102122121 - 2⁷ = 121102121993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121102122095 and 121102122104.

It is not an unprimeable number, because it can be changed into a prime (121102120121) 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, 1115751 + ... + 1219468.

It is an arithmetic number, because the mean of its divisors is an integer number (30276127300).

Almost surely, 2^121102122121 is an apocalyptic number.

It is an amenable number.

121102122121 is a deficient number, since it is larger than the sum of its proper divisors (2387079).

121102122121 is an equidigital number, since it uses as much as digits as its factorization.

121102122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387078.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121102122121 its reverse (121221201121), we get a palindrome (242323323242).

The spelling of 121102122121 in words is "one hundred twenty-one billion, one hundred two million, one hundred twenty-two thousand, one hundred twenty-one".