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2122012120120 = 2351719971562647
BaseRepresentation
bin11110111000010001110…
…001110101010000111000
321111212021200011202100221
4132320101301311100320
5234231340100320440
64302501112105424
7306211303261624
oct36702161652070
97455250152327
102122012120120
11748a385805a2
122a3315695274
1312514957a659
14749c5128184
153a2e993bd4a
hex1ee11c75438

2122012120120 has 64 divisors (see below), whose sum is σ = 5057916540480. Its totient is φ = 798474602496.

The previous prime is 2122012120061. The next prime is 2122012120147. The reversal of 2122012120120 is 210212102212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2122012120094 and 2122012120103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 576637 + ... + 2139283.

It is an arithmetic number, because the mean of its divisors is an integer number (79029945945).

Almost surely, 22122012120120 is an apocalyptic number.

2122012120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122012120120 is an abundant number, since it is smaller than the sum of its proper divisors (2935904420360).

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

2122012120120 is a wasteful number, since it uses less digits than its factorization.

2122012120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564672 (or 1564668 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2122012120120 its reverse (210212102212), we get a palindrome (2332224222332).

The spelling of 2122012120120 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 1997 3994 7988 9985 15976 19970 33949 39940 67898 79880 135796 169745 271592 339490 678980 1357960 1562647 3125294 6250588 7813235 12501176 15626470 26564999 31252940 53129998 62505880 106259996 132824995 212519992 265649990 531299980 1062599960 3120606059 6241212118 12482424236 15603030295 24964848472 31206060590 53050303003 62412121180 106100606006 124824242360 212201212012 265251515015 424402424024 530503030030 1061006060060 2122012120120