12212402000 has 320 divisors, whose sum is σ = 33008601600. Its totient is φ = 4349030400.

The previous prime is 12212401951. The next prime is 12212402009. The reversal of 12212402000 is 20421221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212402009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 77785922 + ... + 77786078.

It is an arithmetic number, because the mean of its divisors is an integer number (103151880).

Almost surely, 2^12212402000 is an apocalyptic number.

12212402000 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 12212402000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16504300800).

12212402000 is an abundant number, since it is smaller than the sum of its proper divisors (20796199600).

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

12212402000 is a wasteful number, since it uses less digits than its factorization.

12212402000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12212402000 its reverse (20421221), we get a palindrome (12232823221).

The spelling of 12212402000 in words is "twelve billion, two hundred twelve million, four hundred two thousand".