1101012198 has 64 divisors (see below), whose sum is σ = 2598849792. Its totient is φ = 306564480.

The previous prime is 1101012197. The next prime is 1101012257. The reversal of 1101012198 is 8912101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012197) 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, 191940 + ... + 197592.

It is an arithmetic number, because the mean of its divisors is an integer number (40607028).

Almost surely, 2^1101012198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101012198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1299424896).

1101012198 is an abundant number, since it is smaller than the sum of its proper divisors (1497837594).

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

1101012198 is a wasteful number, since it uses less digits than its factorization.

1101012198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5909.

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

The square root of 1101012198 is about 33181.5038538039. The cubic root of 1101012198 is about 1032.5966462267.

The spelling of 1101012198 in words is "one billion, one hundred one million, twelve thousand, one hundred ninety-eight".