11122231000 has 64 divisors (see below), whose sum is σ = 26047157760. Its totient is φ = 4445280000.

The previous prime is 11122230979. The next prime is 11122231013. The reversal of 11122231000 is 13222111.

It is a super-2 number, since 2×11122231000² (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 15 ways as a sum of consecutive naturals, for example, 1467220 + ... + 1474780.

It is an arithmetic number, because the mean of its divisors is an integer number (406986840).

Almost surely, 2^11122231000 is an apocalyptic number.

11122231000 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 11122231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13023578880).

11122231000 is an abundant number, since it is smaller than the sum of its proper divisors (14924926760).

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

11122231000 is a wasteful number, since it uses less digits than its factorization.

11122231000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9053 (or 9039 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11122231000 its reverse (13222111), we get a palindrome (11135453111).

The spelling of 11122231000 in words is "eleven billion, one hundred twenty-two million, two hundred thirty-one thousand".