121203331220213 has 4 divisors (see below), whose sum is σ = 132221815876608. Its totient is φ = 110184846563820.

The previous prime is 121203331220203. The next prime is 121203331220227. The reversal of 121203331220213 is 312022133302121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121203331220213 - 2⁴ = 121203331220197 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 (121203331220203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5509242328181 + ... + 5509242328202.

It is an arithmetic number, because the mean of its divisors is an integer number (33055453969152).

Almost surely, 2^{121203331220213} is an apocalyptic number.

It is an amenable number.

121203331220213 is a deficient number, since it is larger than the sum of its proper divisors (11018484656395).

121203331220213 is a wasteful number, since it uses less digits than its factorization.

121203331220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11018484656394.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 121203331220213 its reverse (312022133302121), we get a palindrome (433225464522334).

The spelling of 121203331220213 in words is "one hundred twenty-one trillion, two hundred three billion, three hundred thirty-one million, two hundred twenty thousand, two hundred thirteen".