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1000222010221 = 7469193045437
BaseRepresentation
bin11101000111000011110…
…00001010101101101101
310112121202012011201020211
432203201320022231231
5112341423313311341
62043255020542421
7132156301544110
oct16434170125555
93477665151224
101000222010221
11356212281515
12141a243b1a11
137342228b235
14365a7b18577
151b040ebc181
hexe8e1e0ab6d

1000222010221 has 8 divisors (see below), whose sum is σ = 1143135607680. Its totient is φ = 857314597488.

The previous prime is 1000222010131. The next prime is 1000222010239. The reversal of 1000222010221 is 1220102220001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000222010221 - 219 = 1000221485933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000222011221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1194286 + ... + 1851151.

It is an arithmetic number, because the mean of its divisors is an integer number (142891950960).

Almost surely, 21000222010221 is an apocalyptic number.

It is an amenable number.

1000222010221 is a deficient number, since it is larger than the sum of its proper divisors (142913597459).

1000222010221 is an equidigital number, since it uses as much as digits as its factorization.

1000222010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092363.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000222010221 its reverse (1220102220001), we get a palindrome (2220324230222).

The spelling of 1000222010221 in words is "one trillion, two hundred twenty-two million, ten thousand, two hundred twenty-one".

Divisors: 1 7 46919 328433 3045437 21318059 142888858603 1000222010221