1220022001009 has 4 divisors (see below), whose sum is σ = 1394310858304. Its totient is φ = 1045733143716.

The previous prime is 1220022001007. The next prime is 1220022001043. The reversal of 1220022001009 is 9001002200221.

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 1220022001009 - 2¹ = 1220022001007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220022001007) 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, 87144428637 + ... + 87144428650.

It is an arithmetic number, because the mean of its divisors is an integer number (348577714576).

Almost surely, 2^{1220022001009} is an apocalyptic number.

It is an amenable number.

1220022001009 is a deficient number, since it is larger than the sum of its proper divisors (174288857295).

1220022001009 is an equidigital number, since it uses as much as digits as its factorization.

1220022001009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174288857294.

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

The spelling of 1220022001009 in words is "one trillion, two hundred twenty billion, twenty-two million, one thousand, nine".