200302012221221 has 4 divisors (see below), whose sum is σ = 204081295470732. Its totient is φ = 196522728971712.

The previous prime is 200302012221187. The next prime is 200302012221247. The reversal of 200302012221221 is 122122210203002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151117234350625 + 49184777870596 = 12292975^2 + 7013186^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200302012221221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200302012221193 and 200302012221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200302012221251) 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, 1889641624676 + ... + 1889641624781.

It is an arithmetic number, because the mean of its divisors is an integer number (51020323867683).

Almost surely, 2^{200302012221221} is an apocalyptic number.

It is an amenable number.

200302012221221 is a deficient number, since it is larger than the sum of its proper divisors (3779283249511).

200302012221221 is an equidigital number, since it uses as much as digits as its factorization.

200302012221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779283249510.

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

Adding to 200302012221221 its reverse (122122210203002), we get a palindrome (322424222424223).

The spelling of 200302012221221 in words is "two hundred trillion, three hundred two billion, twelve million, two hundred twenty-one thousand, two hundred twenty-one".