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2122210022121 = 32755760477331
BaseRepresentation
bin11110111000011101100…
…100110001001011101001
321111212210110120012212200
4132320131210301023221
5234232241231201441
64302532501530413
7306216225360450
oct36703544611351
97455713505780
102122210022121
1174902a260272
122a336ba13a09
1312517b57ba27
1474a03521b97
153a30bece7b6
hex1ee1d9312e9

2122210022121 has 24 divisors (see below), whose sum is σ = 3509620530624. Its totient is φ = 1210514237280.

The previous prime is 2122210022089. The next prime is 2122210022129. The reversal of 2122210022121 is 1212200122212.

It is a happy number.

2122210022121 is a `hidden beast` number, since 212 + 2 + 210 + 0 + 221 + 21 = 666.

It is not a de Polignac number, because 2122210022121 - 25 = 2122210022089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122210022094 and 2122210022103.

It is not an unprimeable number, because it can be changed into a prime (2122210022129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30203575 + ... + 30273756.

It is an arithmetic number, because the mean of its divisors is an integer number (146234188776).

Almost surely, 22122210022121 is an apocalyptic number.

2122210022121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2122210022121 is a deficient number, since it is larger than the sum of its proper divisors (1387410508503).

2122210022121 is a wasteful number, since it uses less digits than its factorization.

2122210022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60477901 (or 60477898 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2122210022121 its reverse (1212200122212), we get a palindrome (3334410144333).

The spelling of 2122210022121 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 3 7 9 21 63 557 1671 3899 5013 11697 35091 60477331 181431993 423341317 544295979 1270023951 3810071853 33685873367 101057620101 235801113569 303172860303 707403340707 2122210022121