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22200010221 = 347157446881
BaseRepresentation
bin10100101011001110…
…010100010111101101
32010022011020100220210
4110223032110113231
5330431200311341
614110515133033
71414064654604
oct245316242755
963264210823
1022200010221
119462366294
1243768a4179
13212a410b2c
141108566a3b
1589de8ac16
hex52b3945ed

22200010221 has 8 divisors (see below), whose sum is σ = 30229801344. Its totient is φ = 14485112960.

The previous prime is 22200010207. The next prime is 22200010277. The reversal of 22200010221 is 12201000222.

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 22200010221 - 233 = 13610075629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22200010197 and 22200010206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200012221) by changing a digit.

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, 78723300 + ... + 78723581.

It is an arithmetic number, because the mean of its divisors is an integer number (3778725168).

Almost surely, 222200010221 is an apocalyptic number.

It is an amenable number.

22200010221 is a deficient number, since it is larger than the sum of its proper divisors (8029791123).

22200010221 is a wasteful number, since it uses less digits than its factorization.

22200010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157446931.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22200010221 its reverse (12201000222), we get a palindrome (34401010443).

Subtracting from 22200010221 its reverse (12201000222), we obtain a palindrome (9999009999).

It can be divided in two parts, 222000 and 10221, that added together give a triangular number (232221 = T681).

The spelling of 22200010221 in words is "twenty-two billion, two hundred million, ten thousand, two hundred twenty-one".

Divisors: 1 3 47 141 157446881 472340643 7400003407 22200010221