221070383512 has 16 divisors (see below), whose sum is σ = 452189421000. Its totient is φ = 100486537920.

The previous prime is 221070383491. The next prime is 221070383537. The reversal of 221070383512 is 215383070122.

221070383512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221070383512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256081637 + ... + 1256081812.

Almost surely, 2^221070383512 is an apocalyptic number.

221070383512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221070383512 is an abundant number, since it is smaller than the sum of its proper divisors (231119037488).

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

221070383512 is a wasteful number, since it uses less digits than its factorization.

221070383512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512163466 (or 2512163462 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 221070383512 in words is "two hundred twenty-one billion, seventy million, three hundred eighty-three thousand, five hundred twelve".