221069851240 has 32 divisors (see below), whose sum is σ = 568465332480. Its totient is φ = 75795377472.

The previous prime is 221069851237. The next prime is 221069851297. The reversal of 221069851240 is 42158960122.

It is a happy number.

221069851240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 221069851193 and 221069851202.

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 7 ways as a sum of consecutive naturals, for example, 394767312 + ... + 394767871.

It is an arithmetic number, because the mean of its divisors is an integer number (17764541640).

Almost surely, 2^221069851240 is an apocalyptic number.

221069851240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221069851240 is an abundant number, since it is smaller than the sum of its proper divisors (347395481240).

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

221069851240 is a wasteful number, since it uses less digits than its factorization.

221069851240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789535201 (or 789535197 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 221069851240 in words is "two hundred twenty-one billion, sixty-nine million, eight hundred fifty-one thousand, two hundred forty".