200221100220949 has 2 divisors, whose sum is σ = 200221100220950. Its totient is φ = 200221100220948.

The previous prime is 200221100220913. The next prime is 200221100221027. The reversal of 200221100220949 is 949022001122002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196033797456849 + 4187302764100 = 14001207^2 + 2046290^2 .

It is a cyclic number.

It is not a de Polignac number, because 200221100220949 - 2³³ = 200212510286357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200221100260949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100110550110474 + 100110550110475.

It is an arithmetic number, because the mean of its divisors is an integer number (100110550110475).

Almost surely, 2^{200221100220949} is an apocalyptic number.

It is an amenable number.

200221100220949 is a deficient number, since it is larger than the sum of its proper divisors (1).

200221100220949 is an equidigital number, since it uses as much as digits as its factorization.

200221100220949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 200221100220949 in words is "two hundred trillion, two hundred twenty-one billion, one hundred million, two hundred twenty thousand, nine hundred forty-nine".