22015105133520 has 160 divisors (see below), whose sum is σ = 69119290368000. Its totient is φ = 5795662459392.

The previous prime is 22015105133513. The next prime is 22015105133531. The reversal of 22015105133520 is 2533150151022.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162286681 + ... + 162422279.

It is an arithmetic number, because the mean of its divisors is an integer number (431995564800).

Almost surely, 2^{22015105133520} is an apocalyptic number.

22015105133520 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 22015105133520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34559645184000).

22015105133520 is an abundant number, since it is smaller than the sum of its proper divisors (47104185234480).

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

22015105133520 is a wasteful number, since it uses less digits than its factorization.

22015105133520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144257 (or 144251 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 22015105133520 its reverse (2533150151022), we get a palindrome (24548255284542).

The spelling of 22015105133520 in words is "twenty-two trillion, fifteen billion, one hundred five million, one hundred thirty-three thousand, five hundred twenty".