1010200221 has 32 divisors (see below), whose sum is σ = 1520104320. Its totient is φ = 662948352.

The previous prime is 1010200133. The next prime is 1010200229. The reversal of 1010200221 is 1220020101.

It is not a de Polignac number, because 1010200221 - 2¹⁷ = 1010069149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010200229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790435 + ... + 791711.

It is an arithmetic number, because the mean of its divisors is an integer number (47503260).

Almost surely, 2^1010200221 is an apocalyptic number.

It is an amenable number.

1010200221 is a deficient number, since it is larger than the sum of its proper divisors (509904099).

1010200221 is a wasteful number, since it uses less digits than its factorization.

1010200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1010200221 is about 31783.6470688938. The cubic root of 1010200221 is about 1003.3885782345.

Adding to 1010200221 its reverse (1220020101), we get a palindrome (2230220322).

The spelling of 1010200221 in words is "one billion, ten million, two hundred thousand, two hundred twenty-one".