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211221210001022 = 21361833673436853
BaseRepresentation
bin110000000001101011000101…
…001100001110111001111110
31000200212112212021221002222122
4300001223011030032321332
5210141122014230013042
62025121403451042542
762330141326502624
oct6001530514167176
91020775767832878
10211221210001022
116133545957a121
121b834103a40452
1390b20c7c93360
143a23238137514
151964535c9c7d2
hexc01ac530ee7e

211221210001022 has 64 divisors (see below), whose sum is σ = 351071629102656. Its totient is φ = 94707276917760.

The previous prime is 211221210001003. The next prime is 211221210001033. The reversal of 211221210001022 is 220100012122112.

It is a super-2 number, since 2×2112212100010222 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 483287948 + ... + 483724800.

It is an arithmetic number, because the mean of its divisors is an integer number (5485494204729).

Almost surely, 2211221210001022 is an apocalyptic number.

211221210001022 is a deficient number, since it is larger than the sum of its proper divisors (139850419101634).

211221210001022 is a wasteful number, since it uses less digits than its factorization.

211221210001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440685.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211221210001022 its reverse (220100012122112), we get a palindrome (431321222123134).

The spelling of 211221210001022 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred ten million, one thousand, twenty-two".

Divisors: 1 2 13 26 61 83 122 166 793 1079 1586 2158 3673 5063 7346 10126 47749 65819 95498 131638 224053 304859 436853 448106 609718 873706 2912689 3963167 5679089 5825378 7926334 11358178 18596399 26648033 36258799 37192798 53296066 72517598 241753187 346424429 471364387 483506374 692848858 942728774 1604561069 2211786739 3209122138 4423573478 20859293897 28753227607 41718587794 57506455214 97878225209 133178568727 195756450418 266357137454 1272416927717 1731321393451 2544833855434 3462642786902 8123892692347 16247785384694 105610605000511 211221210001022