10123221132 has 96 divisors (see below), whose sum is σ = 27945388800. Its totient is φ = 3158067456.

The previous prime is 10123221091. The next prime is 10123221167. The reversal of 10123221132 is 23112232101.

It is a super-2 number, since 2×10123221132² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313243 + ... + 344045.

It is an arithmetic number, because the mean of its divisors is an integer number (291097800).

Almost surely, 2^10123221132 is an apocalyptic number.

10123221132 is a gapful number since it is divisible by the number (12) 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 10123221132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13972694400).

10123221132 is an abundant number, since it is smaller than the sum of its proper divisors (17822167668).

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

10123221132 is a wasteful number, since it uses less digits than its factorization.

10123221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31012 (or 31004 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10123221132 its reverse (23112232101), we get a palindrome (33235453233).

The spelling of 10123221132 in words is "ten billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty-two".