1021022198 has 32 divisors (see below), whose sum is σ = 1813008960. Its totient is φ = 421948800.

The previous prime is 1021022173. The next prime is 1021022201. The reversal of 1021022198 is 8912201201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 527240 + ... + 529172.

It is an arithmetic number, because the mean of its divisors is an integer number (56656530).

Almost surely, 2^1021022198 is an apocalyptic number.

1021022198 is a deficient number, since it is larger than the sum of its proper divisors (791986762).

1021022198 is a wasteful number, since it uses less digits than its factorization.

1021022198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1021022198 is about 31953.4379683939. The cubic root of 1021022198 is about 1006.9588612540.

Adding to 1021022198 its reverse (8912201201), we get a palindrome (9933223399).

The spelling of 1021022198 in words is "one billion, twenty-one million, twenty-two thousand, one hundred ninety-eight".