1210201121101 has 16 divisors (see below), whose sum is σ = 1432284363648. Its totient is φ = 1001058926400.

The previous prime is 1210201121083. The next prime is 1210201121113. The reversal of 1210201121101 is 1011211020121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1210201121101 - 2¹⁵ = 1210201088333 is a prime.

It is a super-3 number, since 3×1210201121101³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210201121191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26715055 + ... + 26760316.

It is an arithmetic number, because the mean of its divisors is an integer number (89517772728).

Almost surely, 2^{1210201121101} is an apocalyptic number.

It is an amenable number.

1210201121101 is a deficient number, since it is larger than the sum of its proper divisors (222083242547).

1210201121101 is an equidigital number, since it uses as much as digits as its factorization.

1210201121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53475492.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1210201121101 its reverse (1011211020121), we get a palindrome (2221412141222).

The spelling of 1210201121101 in words is "one trillion, two hundred ten billion, two hundred one million, one hundred twenty-one thousand, one hundred one".