13122231000 has 64 divisors (see below), whose sum is σ = 40941370080. Its totient is φ = 3499260800.

The previous prime is 13122230999. The next prime is 13122231007. The reversal of 13122231000 is 13222131.

It is a super-2 number, since 2×13122231000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122231007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2184039 + ... + 2190038.

Almost surely, 2^13122231000 is an apocalyptic number.

13122231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122231000 is an abundant number, since it is smaller than the sum of its proper divisors (27819139080).

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

13122231000 is a wasteful number, since it uses less digits than its factorization.

13122231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374101 (or 4374087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13122231000 its reverse (13222131), we get a palindrome (13135453131).

The spelling of 13122231000 in words is "thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand".