1117722030821 has 4 divisors (see below), whose sum is σ = 1219333124544. Its totient is φ = 1016110937100.

The previous prime is 1117722030791. The next prime is 1117722030829. The reversal of 1117722030821 is 1280302277111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1117722030821 - 2²² = 1117717836517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1117722030829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50805546845 + ... + 50805546866.

It is an arithmetic number, because the mean of its divisors is an integer number (304833281136).

Almost surely, 2^{1117722030821} is an apocalyptic number.

1117722030821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1117722030821 is a deficient number, since it is larger than the sum of its proper divisors (101611093723).

1117722030821 is a wasteful number, since it uses less digits than its factorization.

1117722030821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101611093722.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 1117722030821 in words is "one trillion, one hundred seventeen billion, seven hundred twenty-two million, thirty thousand, eight hundred twenty-one".