1012220211009 has 16 divisors (see below), whose sum is σ = 1542462482432. Its totient is φ = 578399667408.

The previous prime is 1012220210927. The next prime is 1012220211029. The reversal of 1012220211009 is 9001120222101.

It is not a de Polignac number, because 1012220211009 - 2²⁴ = 1012203433793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012220211029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608802 + ... + 1547604.

It is an arithmetic number, because the mean of its divisors is an integer number (96403905152).

Almost surely, 2^{1012220211009} is an apocalyptic number.

It is an amenable number.

1012220211009 is a deficient number, since it is larger than the sum of its proper divisors (530242271423).

1012220211009 is an equidigital number, since it uses as much as digits as its factorization.

1012220211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990156.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1012220211009 in words is "one trillion, twelve billion, two hundred twenty million, two hundred eleven thousand, nine".