1144121212101 has 32 divisors (see below), whose sum is σ = 1746674546688. Its totient is φ = 652565280960.

The previous prime is 1144121212049. The next prime is 1144121212147. The reversal of 1144121212101 is 1012121214411.

It is not a de Polignac number, because 1144121212101 - 2⁶ = 1144121212037 is a prime.

It is a super-2 number, since 2×1144121212101² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144121212301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25330800 + ... + 25375926.

It is an arithmetic number, because the mean of its divisors is an integer number (54583579584).

Almost surely, 2^{1144121212101} is an apocalyptic number.

It is an amenable number.

1144121212101 is a deficient number, since it is larger than the sum of its proper divisors (602553334587).

1144121212101 is a wasteful number, since it uses less digits than its factorization.

1144121212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47361.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 1144121212101 its reverse (1012121214411), we get a palindrome (2156242426512).

The spelling of 1144121212101 in words is "one trillion, one hundred forty-four billion, one hundred twenty-one million, two hundred twelve thousand, one hundred one".