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212002011222 = 2371214961897
BaseRepresentation
bin1100010101110001001…
…1011111100001010110
3202021012210012000201120
43011130103133201112
511433140003324342
6241220430504410
721213415235241
oct3053423374126
9667183160646
10212002011222
1181a00676941
1235107065106
1316cb7a09271
14a3920a4258
1557abe90aec
hex315c4df856

212002011222 has 16 divisors (see below), whose sum is σ = 424063650672. Its totient is φ = 70657399040.

The previous prime is 212002011211. The next prime is 212002011223. The reversal of 212002011222 is 222110200212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002011223) 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, 2438223 + ... + 2523674.

It is an arithmetic number, because the mean of its divisors is an integer number (26503978167).

Almost surely, 2212002011222 is an apocalyptic number.

212002011222 is an abundant number, since it is smaller than the sum of its proper divisors (212061639450).

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

212002011222 is a wasteful number, since it uses less digits than its factorization.

212002011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4969023.

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

Adding to 212002011222 its reverse (222110200212), we get a palindrome (434112211434).

The spelling of 212002011222 in words is "two hundred twelve billion, two million, eleven thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7121 14242 21363 42726 4961897 9923794 14885691 29771382 35333668537 70667337074 106001005611 212002011222