121103021210101 has 16 divisors (see below), whose sum is σ = 139707648405504. Its totient is φ = 102824591600304.

The previous prime is 121103021210099. The next prime is 121103021210111. The reversal of 121103021210101 is 101012120301121.

It is a happy number.

It is not a de Polignac number, because 121103021210101 - 2¹ = 121103021210099 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 (121103021210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3595476 + ... + 15972898.

It is an arithmetic number, because the mean of its divisors is an integer number (8731728025344).

Almost surely, 2^{121103021210101} is an apocalyptic number.

It is an amenable number.

121103021210101 is a deficient number, since it is larger than the sum of its proper divisors (18604627195403).

121103021210101 is a wasteful number, since it uses less digits than its factorization.

121103021210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12390600.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 121103021210101 its reverse (101012120301121), we get a palindrome (222115141511222).

The spelling of 121103021210101 in words is "one hundred twenty-one trillion, one hundred three billion, twenty-one million, two hundred ten thousand, one hundred one".