1002021222109 has 4 divisors (see below), whose sum is σ = 1002048078016. Its totient is φ = 1001994366204.

The previous prime is 1002021222067. The next prime is 1002021222131. The reversal of 1002021222109 is 9012221202001.

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 1002021222109 - 2¹⁷ = 1002021091037 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 1002021222109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002021222149) 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, 13371909 + ... + 13446634.

It is an arithmetic number, because the mean of its divisors is an integer number (250512019504).

Almost surely, 2^{1002021222109} is an apocalyptic number.

It is an amenable number.

1002021222109 is a deficient number, since it is larger than the sum of its proper divisors (26855907).

1002021222109 is an equidigital number, since it uses as much as digits as its factorization.

1002021222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26855906.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1002021222109 in words is "one trillion, two billion, twenty-one million, two hundred twenty-two thousand, one hundred nine".