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121120110221222 = 2778715361715639
BaseRepresentation
bin11011100010100001111001…
…001001010001011110100110
3120212211222011201202220000102
4123202201321021101132212
5111333412441204034342
61105333451022144102
734340432146031240
oct3342417111213646
9525758151686012
10121120110221222
1135657828697042
1211701a7ba22032
135277767691818
1421ca35d311090
15e0092a895832
hex6e28792517a6

121120110221222 has 32 divisors (see below), whose sum is σ = 207912129692160. Its totient is φ = 51839213690880.

The previous prime is 121120110221219. The next prime is 121120110221309. The reversal of 121120110221222 is 222122011021121.

It is a super-2 number, since 2×1211201102212222 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121120110221194 and 121120110221203.

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 15 ways as a sum of consecutive naturals, for example, 168889679 + ... + 169605317.

It is an arithmetic number, because the mean of its divisors is an integer number (6497254052880).

Almost surely, 2121120110221222 is an apocalyptic number.

121120110221222 is a deficient number, since it is larger than the sum of its proper divisors (86792019470938).

121120110221222 is a wasteful number, since it uses less digits than its factorization.

121120110221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731796.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121120110221222 its reverse (222122011021121), we get a palindrome (343242121242343).

The spelling of 121120110221222 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred ten million, two hundred twenty-one thousand, two hundred twenty-two".

Divisors: 1 2 7 14 787 1574 5509 11018 15361 30722 107527 215054 715639 1431278 5009473 10018946 12089107 24178214 84623749 169247498 563207893 1126415786 3942455251 7884910502 10992930679 21985861358 76950514753 153901029506 8651436444373 17302872888746 60560055110611 121120110221222