1002200000123 has 12 divisors (see below), whose sum is σ = 1166383221552. Its totient is φ = 858616874640.

The previous prime is 1002200000117. The next prime is 1002200000143. The reversal of 1002200000123 is 3210000022001.

It is a happy number.

It is not a de Polignac number, because 1002200000123 - 2¹⁶ = 1002199934587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002200000143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4797848 + ... + 5002373.

It is an arithmetic number, because the mean of its divisors is an integer number (97198601796).

Almost surely, 2^{1002200000123} is an apocalyptic number.

1002200000123 is a deficient number, since it is larger than the sum of its proper divisors (164183221429).

1002200000123 is an equidigital number, since it uses as much as digits as its factorization.

1002200000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802322 (or 9802315 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 1002200000123 its reverse (3210000022001), we get a palindrome (4212200022124).

The spelling of 1002200000123 in words is "one trillion, two billion, two hundred million, one hundred twenty-three", and thus it is an aban number.