12002022000 has 480 divisors, whose sum is σ = 43864763904. Its totient is φ = 3055104000.

The previous prime is 12002021971. The next prime is 12002022029. The reversal of 12002022000 is 22020021.

It is an interprime number because it is at equal distance from previous prime (12002021971) and next prime (12002022029).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 76445922 + ... + 76446078.

Almost surely, 2^12002022000 is an apocalyptic number.

12002022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12002022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21932381952).

12002022000 is an abundant number, since it is smaller than the sum of its proper divisors (31862741904).

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

12002022000 is a wasteful number, since it uses less digits than its factorization.

12002022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 335 counting only the distinct ones).

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

Adding to 12002022000 its reverse (22020021), we get a palindrome (12024042021).

The spelling of 12002022000 in words is "twelve billion, two million, twenty-two thousand".