1020022120009 has 8 divisors (see below), whose sum is σ = 1089931894920. Its totient is φ = 951213286656.

The previous prime is 1020022119989. The next prime is 1020022120057. The reversal of 1020022120009 is 9000212200201.

It can be written as a sum of positive squares in 4 ways, for example, as 654877470025 + 365144649984 = 809245^2 + 604272^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1020022120009 - 2²⁵ = 1019988565577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020022120069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275233474 + ... + 275237179.

It is an arithmetic number, because the mean of its divisors is an integer number (136241486865).

Almost surely, 2^{1020022120009} is an apocalyptic number.

It is an amenable number.

1020022120009 is a deficient number, since it is larger than the sum of its proper divisors (69909774911).

1020022120009 is a wasteful number, since it uses less digits than its factorization.

1020022120009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550470779.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 1020022120009 in words is "one trillion, twenty billion, twenty-two million, one hundred twenty thousand, nine".