13212233400 has 96 divisors (see below), whose sum is σ = 43367246640. Its totient is φ = 3316008960.

The previous prime is 13212233369. The next prime is 13212233401. The reversal of 13212233400 is 433221231.

It is a super-2 number, since 2×13212233400² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212233401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637459 + ... + 657858.

Almost surely, 2^13212233400 is an apocalyptic number.

13212233400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212233400 is an abundant number, since it is smaller than the sum of its proper divisors (30155013240).

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

13212233400 is a wasteful number, since it uses less digits than its factorization.

13212233400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295353 (or 1295344 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13212233400 its reverse (433221231), we get a palindrome (13645454631).

The spelling of 13212233400 in words is "thirteen billion, two hundred twelve million, two hundred thirty-three thousand, four hundred".