1022001198 has 64 divisors (see below), whose sum is σ = 2151386112. Its totient is φ = 323326080.

The previous prime is 1022001187. The next prime is 1022001289. The reversal of 1022001198 is 8911002201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2207115 + ... + 2207577.

It is an arithmetic number, because the mean of its divisors is an integer number (33615408).

Almost surely, 2^1022001198 is an apocalyptic number.

1022001198 is an abundant number, since it is smaller than the sum of its proper divisors (1129384914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022001198 is a wasteful number, since it uses less digits than its factorization.

1022001198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 1022001198 is about 31968.7534633429. The cubic root of 1022001198 is about 1007.2805969339.

Adding to 1022001198 its reverse (8911002201), we get a palindrome (9933003399).

The spelling of 1022001198 in words is "one billion, twenty-two million, one thousand, one hundred ninety-eight".