12002021422 has 16 divisors (see below), whose sum is σ = 18954032400. Its totient is φ = 5684126400.

The previous prime is 12002021417. The next prime is 12002021429. The reversal of 12002021422 is 22412020021.

It is a super-3 number, since 3×12002021422³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12002021396 and 12002021405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002021429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205954 + ... + 257722.

It is an arithmetic number, because the mean of its divisors is an integer number (1184627025).

Almost surely, 2^12002021422 is an apocalyptic number.

12002021422 is a deficient number, since it is larger than the sum of its proper divisors (6952010978).

12002021422 is a wasteful number, since it uses less digits than its factorization.

12002021422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57891.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12002021422 its reverse (22412020021), we get a palindrome (34414041443).

The spelling of 12002021422 in words is "twelve billion, two million, twenty-one thousand, four hundred twenty-two".