1010021198 has 8 divisors (see below), whose sum is σ = 1518849192. Its totient is φ = 503738136.

The previous prime is 1010021197. The next prime is 1010021203. The reversal of 1010021198 is 8911200101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635240 + ... + 636827.

It is an arithmetic number, because the mean of its divisors is an integer number (189856149).

Almost surely, 2^1010021198 is an apocalyptic number.

1010021198 is a deficient number, since it is larger than the sum of its proper divisors (508827994).

1010021198 is a wasteful number, since it uses less digits than its factorization.

1010021198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272466.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 1010021198 is about 31780.8306688167. The cubic root of 1010021198 is about 1003.3293027754.

Adding to 1010021198 its reverse (8911200101), we get a palindrome (9921221299).

The spelling of 1010021198 in words is "one billion, ten million, twenty-one thousand, one hundred ninety-eight".