221301221231130 has 64 divisors (see below), whose sum is σ = 541150877887488. Its totient is φ = 57899470487040.

The previous prime is 221301221231089. The next prime is 221301221231131. The reversal of 221301221231130 is 31132122103122.

It is a self number, because there is not a number n which added to its sum of digits gives 221301221231130.

It is not an unprimeable number, because it can be changed into a prime (221301221231131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132934710 + ... + 134589150.

It is an arithmetic number, because the mean of its divisors is an integer number (8455482466992).

Almost surely, 2^{221301221231130} is an apocalyptic number.

221301221231130 is an abundant number, since it is smaller than the sum of its proper divisors (319849656656358).

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

221301221231130 is a wasteful number, since it uses less digits than its factorization.

221301221231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738631.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 221301221231130 its reverse (31132122103122), we get a palindrome (252433343334252).

The spelling of 221301221231130 in words is "two hundred twenty-one trillion, three hundred one billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty".