121213141 has 16 divisors (see below), whose sum is σ = 148930560. Its totient is φ = 96329520.

The previous prime is 121213129. The next prime is 121213163. The reversal of 121213141 is 141312121.

It is not a de Polignac number, because 121213141 - 2¹⁵ = 121180373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121213241) 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, 3445 + ... + 15946.

It is an arithmetic number, because the mean of its divisors is an integer number (9308160).

Almost surely, 2^121213141 is an apocalyptic number.

It is an amenable number.

121213141 is a deficient number, since it is larger than the sum of its proper divisors (27717419).

121213141 is a wasteful number, since it uses less digits than its factorization.

121213141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464.

The product of its digits is 48, while the sum is 16.

The square root of 121213141 is about 11009.6839645832. The cubic root of 121213141 is about 494.8989910551.

Adding to 121213141 its reverse (141312121), we get a palindrome (262525262).

The spelling of 121213141 in words is "one hundred twenty-one million, two hundred thirteen thousand, one hundred forty-one".