141545001221221 has 16 divisors (see below), whose sum is σ = 157435772243904. Its totient is φ = 126425695785984.

The previous prime is 141545001221177. The next prime is 141545001221227. The reversal of 141545001221221 is 122122100545141.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 141545001221221 - 2⁴³ = 132748908199013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141545001221227) 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 15 ways as a sum of consecutive naturals, for example, 1183169596 + ... + 1183289221.

It is an arithmetic number, because the mean of its divisors is an integer number (9839735765244).

Almost surely, 2^{141545001221221} is an apocalyptic number.

It is an amenable number.

141545001221221 is a deficient number, since it is larger than the sum of its proper divisors (15890771022683).

141545001221221 is a wasteful number, since it uses less digits than its factorization.

141545001221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366458980.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 141545001221221 its reverse (122122100545141), we get a palindrome (263667101766362).

The spelling of 141545001221221 in words is "one hundred forty-one trillion, five hundred forty-five billion, one million, two hundred twenty-one thousand, two hundred twenty-one".