121101102221 has 8 divisors (see below), whose sum is σ = 134602941024. Its totient is φ = 108014704720.

The previous prime is 121101102209. The next prime is 121101102253. The reversal of 121101102221 is 122201101121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101102221 is a prime.

It is a super-2 number, since 2×121101102221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121101102196 and 121101102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101105221) 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, 103859711 + ... + 103860876.

It is an arithmetic number, because the mean of its divisors is an integer number (16825367628).

Almost surely, 2^121101102221 is an apocalyptic number.

121101102221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121101102221 is a deficient number, since it is larger than the sum of its proper divisors (13501838803).

121101102221 is a wasteful number, since it uses less digits than its factorization.

121101102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207720651.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121101102221 its reverse (122201101121), we get a palindrome (243302203342).

It can be divided in two parts, 121101 and 102221, that added together give a palindrome (223322).

The spelling of 121101102221 in words is "one hundred twenty-one billion, one hundred one million, one hundred two thousand, two hundred twenty-one".