220111001509 has 8 divisors (see below), whose sum is σ = 251653829888. Its totient is φ = 188592773040.

The previous prime is 220111001501. The next prime is 220111001531. The reversal of 220111001509 is 905100111022.

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

It is not a de Polignac number, because 220111001509 - 2³ = 220111001501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220111001509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111001501) 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, 6130797 + ... + 6166594.

It is an arithmetic number, because the mean of its divisors is an integer number (31456728736).

Almost surely, 2^220111001509 is an apocalyptic number.

It is an amenable number.

220111001509 is a deficient number, since it is larger than the sum of its proper divisors (31542828379).

220111001509 is a wasteful number, since it uses less digits than its factorization.

220111001509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12299955.

The product of its (nonzero) digits is 180, while the sum is 22.

The spelling of 220111001509 in words is "two hundred twenty billion, one hundred eleven million, one thousand, five hundred nine".