12000022002 has 48 divisors (see below), whose sum is σ = 26444471040. Its totient is φ = 3931890336.

The previous prime is 12000021961. The next prime is 12000022031. The reversal of 12000022002 is 20022000021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567288 + ... + 588060.

It is an arithmetic number, because the mean of its divisors is an integer number (550926480).

Almost surely, 2^12000022002 is an apocalyptic number.

12000022002 is an abundant number, since it is smaller than the sum of its proper divisors (14444449038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12000022002 is a wasteful number, since it uses less digits than its factorization.

12000022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21327 (or 21324 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12000022002 its reverse (20022000021), we get a palindrome (32022022023).

The spelling of 12000022002 in words is "twelve billion, twenty-two thousand, two".