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212002001222 = 211235960711699
BaseRepresentation
bin1100010101110001001…
…1011101000101000110
3202021012210011112000012
43011130103131011012
511433140003014342
6241220430350222
721213415164134
oct3053423350506
9667183145005
10212002001222
1181a0066a380
123510705b372
1316cb7a0484b
14a3920a0754
1557abe8cb82
hex315c4dd146

212002001222 has 64 divisors (see below), whose sum is σ = 368769024000. Its totient is φ = 90455486880.

The previous prime is 212002001203. The next prime is 212002001243. The reversal of 212002001222 is 222100200212.

It is a junction number, because it is equal to n+sod(n) for n = 212002001197 and 212002001206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18115529 + ... + 18127227.

It is an arithmetic number, because the mean of its divisors is an integer number (5762016000).

Almost surely, 2212002001222 is an apocalyptic number.

212002001222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212002001222 is a deficient number, since it is larger than the sum of its proper divisors (156767022778).

212002001222 is a wasteful number, since it uses less digits than its factorization.

212002001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12401.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 212002001222 its reverse (222100200212), we get a palindrome (434102201434).

The spelling of 212002001222 in words is "two hundred twelve billion, two million, one thousand, two hundred twenty-two".

Divisors: 1 2 11 22 23 46 59 118 253 506 607 649 1214 1298 1357 2714 6677 11699 13354 13961 14927 23398 27922 29854 35813 71626 128689 153571 257378 269077 307142 393943 538154 690241 787886 823699 1380482 1647398 2959847 5919694 7101293 7592651 9060689 14202586 15185302 15875543 18121378 31751086 78114223 156228446 163329739 174630973 326659478 349261946 418976287 837952574 1796627129 3593254258 4608739157 9217478314 9636454601 19272909202 106001000611 212002001222