20131222300 has 72 divisors (see below), whose sum is σ = 49944060320. Its totient is φ = 6899558400.

The previous prime is 20131222273. The next prime is 20131222387. The reversal of 20131222300 is 322213102.

It is a super-2 number, since 2×20131222300² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 3643540 + ... + 3649060.

Almost surely, 2^20131222300 is an apocalyptic number.

20131222300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20131222300 is an abundant number, since it is smaller than the sum of its proper divisors (29812838020).

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

20131222300 is a wasteful number, since it uses less digits than its factorization.

20131222300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10751 (or 10744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20131222300 its reverse (322213102), we get a palindrome (20453435402).

The spelling of 20131222300 in words is "twenty billion, one hundred thirty-one million, two hundred twenty-two thousand, three hundred".