203012241221 has 8 divisors (see below), whose sum is σ = 205368851520. Its totient is φ = 200669214208.

The previous prime is 203012241169. The next prime is 203012241233. The reversal of 203012241221 is 122142210302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203012241221 - 2¹⁸ = 203011979077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203012241193 and 203012241202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203012241241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3365756 + ... + 3425541.

It is an arithmetic number, because the mean of its divisors is an integer number (25671106440).

Almost surely, 2^203012241221 is an apocalyptic number.

It is an amenable number.

203012241221 is a deficient number, since it is larger than the sum of its proper divisors (2356610299).

203012241221 is a wasteful number, since it uses less digits than its factorization.

203012241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6791643.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 203012241221 its reverse (122142210302), we get a palindrome (325154451523).

The spelling of 203012241221 in words is "two hundred three billion, twelve million, two hundred forty-one thousand, two hundred twenty-one".