221241320130 has 32 divisors (see below), whose sum is σ = 531195278400. Its totient is φ = 58973673152.

The previous prime is 221241320051. The next prime is 221241320141. The reversal of 221241320130 is 31023142122.

It is a junction number, because it is equal to n+sod(n) for n = 221241320097 and 221241320106.

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, 1425765 + ... + 1573304.

It is an arithmetic number, because the mean of its divisors is an integer number (16599852450).

Almost surely, 2^221241320130 is an apocalyptic number.

221241320130 is an abundant number, since it is smaller than the sum of its proper divisors (309953958270).

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

221241320130 is a wasteful number, since it uses less digits than its factorization.

221241320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001538.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221241320130 its reverse (31023142122), we get a palindrome (252264462252).

The spelling of 221241320130 in words is "two hundred twenty-one billion, two hundred forty-one million, three hundred twenty thousand, one hundred thirty".