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212212322210 = 25719159558137
BaseRepresentation
bin1100010110100011010…
…1110000111110100010
3202021202102220221011102
43011220311300332202
511434102323302320
6241253342314402
721221550655640
oct3055065607642
9667672827142
10212212322210
1181aa9361679
1235165588a02
131701c463835
14a3b1dac190
1557c0685175
hex3168d70fa2

212212322210 has 32 divisors (see below), whose sum is σ = 459527437440. Its totient is φ = 68929114752.

The previous prime is 212212322197. The next prime is 212212322263. The reversal of 212212322210 is 12223212212.

212212322210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 79777739 + ... + 79780398.

It is an arithmetic number, because the mean of its divisors is an integer number (14360232420).

Almost surely, 2212212322210 is an apocalyptic number.

212212322210 is an abundant number, since it is smaller than the sum of its proper divisors (247315115230).

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

212212322210 is a wasteful number, since it uses less digits than its factorization.

212212322210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159558170.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212212322210 its reverse (12223212212), we get a palindrome (224435534422).

The spelling of 212212322210 in words is "two hundred twelve billion, two hundred twelve million, three hundred twenty-two thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 159558137 319116274 797790685 1116906959 1595581370 2233813918 3031604603 5584534795 6063209206 11169069590 15158023015 21221232221 30316046030 42442464442 106106161105 212212322210