22130030521540 has 24 divisors (see below), whose sum is σ = 46483804527552. Its totient is φ = 8849966412000.

The previous prime is 22130030521531. The next prime is 22130030521561. The reversal of 22130030521540 is 4512503003122.

It is a junction number, because it is equal to n+sod(n) for n = 22130030521499 and 22130030521508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127773586 + ... + 127946665.

It is an arithmetic number, because the mean of its divisors is an integer number (1936825188648).

Almost surely, 2^{22130030521540} is an apocalyptic number.

22130030521540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22130030521540 is an abundant number, since it is smaller than the sum of its proper divisors (24353774006012).

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

22130030521540 is a wasteful number, since it uses less digits than its factorization.

22130030521540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255724587 (or 255724585 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 22130030521540 its reverse (4512503003122), we get a palindrome (26642533524662).

The spelling of 22130030521540 in words is "twenty-two trillion, one hundred thirty billion, thirty million, five hundred twenty-one thousand, five hundred forty".