221212024130 has 16 divisors (see below), whose sum is σ = 402979014144. Its totient is φ = 87418727280.

The previous prime is 221212024127. The next prime is 221212024141. The reversal of 221212024130 is 31420212122.

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, 133259426 + ... + 133261085.

It is an arithmetic number, because the mean of its divisors is an integer number (25186188384).

Almost surely, 2^221212024130 is an apocalyptic number.

221212024130 is a deficient number, since it is larger than the sum of its proper divisors (181766990014).

221212024130 is a wasteful number, since it uses less digits than its factorization.

221212024130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266520601.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221212024130 its reverse (31420212122), we get a palindrome (252632236252).

The spelling of 221212024130 in words is "two hundred twenty-one billion, two hundred twelve million, twenty-four thousand, one hundred thirty".