121400221124413 has 64 divisors (see below), whose sum is σ = 154932972134400. Its totient is φ = 92371453194240.

The previous prime is 121400221124401. The next prime is 121400221124417. The reversal of 121400221124413 is 314421122004121.

It is not a de Polignac number, because 121400221124413 - 2⁹ = 121400221123901 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 (121400221124417) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6386450653 + ... + 6386469661.

It is an arithmetic number, because the mean of its divisors is an integer number (2420827689600).

Almost surely, 2^{121400221124413} is an apocalyptic number.

It is an amenable number.

121400221124413 is a deficient number, since it is larger than the sum of its proper divisors (33532751009987).

121400221124413 is a wasteful number, since it uses less digits than its factorization.

121400221124413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23050.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 121400221124413 its reverse (314421122004121), we get a palindrome (435821343128534).

The spelling of 121400221124413 in words is "one hundred twenty-one trillion, four hundred billion, two hundred twenty-one million, one hundred twenty-four thousand, four hundred thirteen".