221112532110540 has 48 divisors (see below), whose sum is σ = 707560102755072. Its totient is φ = 50540007339456.

The previous prime is 221112532110539. The next prime is 221112532110563. The reversal of 221112532110540 is 45011235211122.

221112532110540 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 221112532110498 and 221112532110507.

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, 263229204474 + ... + 263229205313.

It is an arithmetic number, because the mean of its divisors is an integer number (14740835474064).

Almost surely, 2^{221112532110540} is an apocalyptic number.

221112532110540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112532110540 is an abundant number, since it is smaller than the sum of its proper divisors (486447570644532).

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

221112532110540 is a wasteful number, since it uses less digits than its factorization.

221112532110540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526458409806 (or 526458409804 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 221112532110540 its reverse (45011235211122), we get a palindrome (266123767321662).

The spelling of 221112532110540 in words is "two hundred twenty-one trillion, one hundred twelve billion, five hundred thirty-two million, one hundred ten thousand, five hundred forty".