121144422201 has 64 divisors (see below), whose sum is σ = 187659832320. Its totient is φ = 68808579840.

The previous prime is 121144422181. The next prime is 121144422227. The reversal of 121144422201 is 102224441121.

It is a happy number.

It is not a de Polignac number, because 121144422201 - 2¹¹ = 121144420153 is a prime.

It is a super-3 number, since 3×121144422201³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121144422271) 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 63 ways as a sum of consecutive naturals, for example, 15682326 + ... + 15690048.

It is an arithmetic number, because the mean of its divisors is an integer number (2932184880).

Almost surely, 2^121144422201 is an apocalyptic number.

121144422201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121144422201 is a deficient number, since it is larger than the sum of its proper divisors (66515410119).

121144422201 is a wasteful number, since it uses less digits than its factorization.

121144422201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8246.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 121144422201 its reverse (102224441121), we get a palindrome (223368863322).

It can be divided in two parts, 121144 and 422201, that added together give a palindrome (543345).

The spelling of 121144422201 in words is "one hundred twenty-one billion, one hundred forty-four million, four hundred twenty-two thousand, two hundred one".