121210201120101 has 16 divisors (see below), whose sum is σ = 170119839556800. Its totient is φ = 76553694667008.

The previous prime is 121210201120079. The next prime is 121210201120109. The reversal of 121210201120101 is 101021102012121.

It is a happy number.

It is not a de Polignac number, because 121210201120101 - 2¹⁵ = 121210201087333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210201120109) 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, 51033595 + ... + 53355863.

It is an arithmetic number, because the mean of its divisors is an integer number (10632489972300).

Almost surely, 2^{121210201120101} is an apocalyptic number.

It is an amenable number.

121210201120101 is a deficient number, since it is larger than the sum of its proper divisors (48909638436699).

121210201120101 is a wasteful number, since it uses less digits than its factorization.

121210201120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3237988.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121210201120101 its reverse (101021102012121), we get a palindrome (222231303132222).

The spelling of 121210201120101 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred one million, one hundred twenty thousand, one hundred one".