221021133002152 has 64 divisors (see below), whose sum is σ = 475121210296320. Its totient is φ = 94422909567168.

The previous prime is 221021133002149. The next prime is 221021133002239. The reversal of 221021133002152 is 251200331120122.

It is a super-2 number, since 2×221021133002152² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17904013 + ... + 27615139.

It is an arithmetic number, because the mean of its divisors is an integer number (7423768910880).

Almost surely, 2^{221021133002152} is an apocalyptic number.

It is an amenable number.

221021133002152 is an abundant number, since it is smaller than the sum of its proper divisors (254100077294168).

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

221021133002152 is a wasteful number, since it uses less digits than its factorization.

221021133002152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9712430 (or 9712426 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 221021133002152 its reverse (251200331120122), we get a palindrome (472221464122274).

The spelling of 221021133002152 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred thirty-three million, two thousand, one hundred fifty-two".