1106994021 has 16 divisors (see below), whose sum is σ = 1726078464. Its totient is φ = 617856624.

The previous prime is 1106994013. The next prime is 1106994029. The reversal of 1106994021 is 1204996011.

It is an interprime number because it is at equal distance from previous prime (1106994013) and next prime (1106994029).

It is not a de Polignac number, because 1106994021 - 2³ = 1106994013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106994029) 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 15 ways as a sum of consecutive naturals, for example, 612051 + ... + 613856.

It is an arithmetic number, because the mean of its divisors is an integer number (107879904).

Almost surely, 2^1106994021 is an apocalyptic number.

It is an amenable number.

1106994021 is a deficient number, since it is larger than the sum of its proper divisors (619084443).

1106994021 is a wasteful number, since it uses less digits than its factorization.

1106994021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225960.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1106994021 is about 33271.5196677278. The cubic root of 1106994021 is about 1034.4633097004.

The spelling of 1106994021 in words is "one billion, one hundred six million, nine hundred ninety-four thousand, twenty-one".