22031001123000 has 128 divisors (see below), whose sum is σ = 68804188128000. Its totient is φ = 5869167427200.

The previous prime is 22031001122987. The next prime is 22031001123049. The reversal of 22031001123000 is 32110013022.

It is a super-2 number, since 2×22031001123000² (a number of 27 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546370 + ... + 6660369.

It is an arithmetic number, because the mean of its divisors is an integer number (537532719750).

Almost surely, 2^{22031001123000} is an apocalyptic number.

22031001123000 is a gapful number since it is divisible by the number (20) 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 22031001123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34402094064000).

22031001123000 is an abundant number, since it is smaller than the sum of its proper divisors (46773187005000).

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

22031001123000 is a wasteful number, since it uses less digits than its factorization.

22031001123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207782 (or 7207768 counting only the distinct ones).

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

Adding to 22031001123000 its reverse (32110013022), we get a palindrome (22063111136022).

The spelling of 22031001123000 in words is "twenty-two trillion, thirty-one billion, one million, one hundred twenty-three thousand".