200203212099721 has 2 divisors, whose sum is σ = 200203212099722. Its totient is φ = 200203212099720.

The previous prime is 200203212099677. The next prime is 200203212099791. The reversal of 200203212099721 is 127990212302002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200058252198025 + 144959901696 = 14144195^2 + 380736^2 .

It is a cyclic number.

It is not a de Polignac number, because 200203212099721 - 2¹⁵ = 200203212066953 is a prime.

It is a super-2 number, since 2×200203212099721² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200203212099791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101606049860 + 100101606049861.

It is an arithmetic number, because the mean of its divisors is an integer number (100101606049861).

Almost surely, 2^{200203212099721} is an apocalyptic number.

It is an amenable number.

200203212099721 is a deficient number, since it is larger than the sum of its proper divisors (1).

200203212099721 is an equidigital number, since it uses as much as digits as its factorization.

200203212099721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 200203212099721 in words is "two hundred trillion, two hundred three billion, two hundred twelve million, ninety-nine thousand, seven hundred twenty-one".