1011012198 has 48 divisors (see below), whose sum is σ = 2415748464. Its totient is φ = 281050560.

The previous prime is 1011012157. The next prime is 1011012229. The reversal of 1011012198 is 8912101101.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35593 + ... + 57348.

It is an arithmetic number, because the mean of its divisors is an integer number (50328093).

Almost surely, 2^1011012198 is an apocalyptic number.

1011012198 is an abundant number, since it is smaller than the sum of its proper divisors (1404736266).

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

1011012198 is a wasteful number, since it uses less digits than its factorization.

1011012198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92997 (or 92990 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 1011012198 is about 31796.4180058069. The cubic root of 1011012198 is about 1003.6573402221.

Adding to 1011012198 its reverse (8912101101), we get a palindrome (9923113299).

The spelling of 1011012198 in words is "one billion, eleven million, twelve thousand, one hundred ninety-eight".