1001012194 has 16 divisors (see below), whose sum is σ = 1848022848. Its totient is φ = 396004752.

The previous prime is 1001012191. The next prime is 1001012197. The reversal of 1001012194 is 4912101001.

It is an interprime number because it is at equal distance from previous prime (1001012191) and next prime (1001012197).

It is not an unprimeable number, because it can be changed into a prime (1001012191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749852 + ... + 2750215.

It is an arithmetic number, because the mean of its divisors is an integer number (115501428).

Almost surely, 2^1001012194 is an apocalyptic number.

1001012194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1001012194 is a deficient number, since it is larger than the sum of its proper divisors (847010654).

1001012194 is a wasteful number, since it uses less digits than its factorization.

1001012194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500089.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1001012194 is about 31638.7767462650. The cubic root of 1001012194 is about 1000.3372842266.

Adding to 1001012194 its reverse (4912101001), we get a palindrome (5913113195).

The spelling of 1001012194 in words is "one billion, one million, twelve thousand, one hundred ninety-four".