1011020221194 has 8 divisors (see below), whose sum is σ = 2022040442400. Its totient is φ = 337006740396.

The previous prime is 1011020221193. The next prime is 1011020221219. The reversal of 1011020221194 is 4911220201101.

It is a sphenic number, since it is the product of 3 distinct primes.

1011020221194 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1011020221193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84251685094 + ... + 84251685105.

It is an arithmetic number, because the mean of its divisors is an integer number (252755055300).

Almost surely, 2^{1011020221194} is an apocalyptic number.

1011020221194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1011020221194 is a wasteful number, since it uses less digits than its factorization.

1011020221194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168503370204.

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

Adding to 1011020221194 its reverse (4911220201101), we get a palindrome (5922240422295).

The spelling of 1011020221194 in words is "one trillion, eleven billion, twenty million, two hundred twenty-one thousand, one hundred ninety-four".