1010221973 has 2 divisors, whose sum is σ = 1010221974. Its totient is φ = 1010221972.

The previous prime is 1010221951. The next prime is 1010222011. The reversal of 1010221973 is 3791220101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009841284 + 380689 = 31778^2 + 617^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010221973 - 2¹⁰ = 1010220949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010221903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505110986 + 505110987.

It is an arithmetic number, because the mean of its divisors is an integer number (505110987).

Almost surely, 2^1010221973 is an apocalyptic number.

It is an amenable number.

1010221973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010221973 is an equidigital number, since it uses as much as digits as its factorization.

1010221973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1010221973 is about 31783.9892555985. The cubic root of 1010221973 is about 1003.3957799592.

The spelling of 1010221973 in words is "one billion, ten million, two hundred twenty-one thousand, nine hundred seventy-three".