221211130130 has 32 divisors (see below), whose sum is σ = 409242226176. Its totient is φ = 86050171584.

The previous prime is 221211130103. The next prime is 221211130139. The reversal of 221211130130 is 31031112122.

It is a junction number, because it is equal to n+sod(n) for n = 221211130099 and 221211130108.

It is not an unprimeable number, because it can be changed into a prime (221211130139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425134 + ... + 1572713.

It is an arithmetic number, because the mean of its divisors is an integer number (12788819568).

Almost surely, 2^221211130130 is an apocalyptic number.

221211130130 is a deficient number, since it is larger than the sum of its proper divisors (188031096046).

221211130130 is a wasteful number, since it uses less digits than its factorization.

221211130130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998058.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 221211130130 its reverse (31031112122), we get a palindrome (252242242252).

The spelling of 221211130130 in words is "two hundred twenty-one billion, two hundred eleven million, one hundred thirty thousand, one hundred thirty".