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212010021222 = 2343381605089
BaseRepresentation
bin1100010101110011001…
…0000011000101100110
3202021020100020222101020
43011130302003011212
511433144031134342
6241221314312010
721213543306066
oct3053462030546
9667210228336
10212010021222
1181a0514797a
1235109888606
1316cb95820cc
14a39318b3a6
1557aca240ec
hex315cc83166

212010021222 has 16 divisors (see below), whose sum is σ = 424999308720. Its totient is φ = 70506796032.

The previous prime is 212010021217. The next prime is 212010021239. The reversal of 212010021222 is 222120010212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40799947 + ... + 40805142.

It is an arithmetic number, because the mean of its divisors is an integer number (26562456795).

Almost surely, 2212010021222 is an apocalyptic number.

212010021222 is an abundant number, since it is smaller than the sum of its proper divisors (212989287498).

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

212010021222 is a wasteful number, since it uses less digits than its factorization.

212010021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81605527.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212010021222 its reverse (222120010212), we get a palindrome (434130031434).

The spelling of 212010021222 in words is "two hundred twelve billion, ten million, twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 433 866 1299 2598 81605089 163210178 244815267 489630534 35335003537 70670007074 106005010611 212010021222