1111020022009 has 4 divisors (see below), whose sum is σ = 1120852057716. Its totient is φ = 1101187986304.

The previous prime is 1111020021973. The next prime is 1111020022087. The reversal of 1111020022009 is 9002200201111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 466215840000 + 644804182009 = 682800^2 + 802997^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111020022009 - 2²¹ = 1111017924857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111020022309) 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, 4916017684 + ... + 4916017909.

It is an arithmetic number, because the mean of its divisors is an integer number (280213014429).

Almost surely, 2^{1111020022009} is an apocalyptic number.

It is an amenable number.

1111020022009 is a deficient number, since it is larger than the sum of its proper divisors (9832035707).

1111020022009 is an equidigital number, since it uses as much as digits as its factorization.

1111020022009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832035706.

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

The spelling of 1111020022009 in words is "one trillion, one hundred eleven billion, twenty million, twenty-two thousand, nine".