141220121 has 16 divisors (see below), whose sum is σ = 164459904. Its totient is φ = 118761984.

The previous prime is 141220117. The next prime is 141220129. The reversal of 141220121 is 121022141.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 141220121 - 2² = 141220117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 141220096 and 141220105.

It is not an unprimeable number, because it can be changed into a prime (141220129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165131 + ... + 165983.

It is an arithmetic number, because the mean of its divisors is an integer number (10278744).

Almost surely, 2^141220121 is an apocalyptic number.

It is an amenable number.

141220121 is a deficient number, since it is larger than the sum of its proper divisors (23239783).

141220121 is an equidigital number, since it uses as much as digits as its factorization.

141220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 141220121 is about 11883.6072385450. The cubic root of 141220121 is about 520.7534946692.

Adding to 141220121 its reverse (121022141), we get a palindrome (262242262).

The spelling of 141220121 in words is "one hundred forty-one million, two hundred twenty thousand, one hundred twenty-one".