1101210220121 has 8 divisors (see below), whose sum is σ = 1202124893184. Its totient is φ = 1000429655920.

The previous prime is 1101210220111. The next prime is 1101210220139. The reversal of 1101210220121 is 1210220121011.

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-1101210220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101210220096 and 1101210220105.

It is not an unprimeable number, because it can be changed into a prime (1101210220111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33510041 + ... + 33542886.

It is an arithmetic number, because the mean of its divisors is an integer number (150265611648).

Almost surely, 2^{1101210220121} is an apocalyptic number.

1101210220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101210220121 is a deficient number, since it is larger than the sum of its proper divisors (100914673063).

1101210220121 is a wasteful number, since it uses less digits than its factorization.

1101210220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67054431.

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

Adding to 1101210220121 its reverse (1210220121011), we get a palindrome (2311430341132).

The spelling of 1101210220121 in words is "one trillion, one hundred one billion, two hundred ten million, two hundred twenty thousand, one hundred twenty-one".