220021213311522 has 24 divisors (see below), whose sum is σ = 544814432962176. Its totient is φ = 62863203803256.

The previous prime is 220021213311491. The next prime is 220021213311547. The reversal of 220021213311522 is 225113312120022.

220021213311522 is a `hidden beast` number, since 2 + 2 + 0 + 0 + 2 + 1 + 2 + 133 + 1 + 1 + 522 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873100052698 + ... + 873100052949.

It is an arithmetic number, because the mean of its divisors is an integer number (22700601373424).

Almost surely, 2^{220021213311522} is an apocalyptic number.

220021213311522 is an abundant number, since it is smaller than the sum of its proper divisors (324793219650654).

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

220021213311522 is a wasteful number, since it uses less digits than its factorization.

220021213311522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746200105662 (or 1746200105659 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 220021213311522 its reverse (225113312120022), we get a palindrome (445134525431544).

The spelling of 220021213311522 in words is "two hundred twenty trillion, twenty-one billion, two hundred thirteen million, three hundred eleven thousand, five hundred twenty-two".