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2111020122020 = 2255313115202507
BaseRepresentation
bin11110101110000010100…
…110101011111110100100
321110210220121210101200012
4132232002212223332210
5234041332122401040
64253442251305352
7305342021654135
oct36560246537644
97423817711605
102111020122020
11744307908747
122a116844b258
131240b71c5274
147426133bc8c
1539da492d865
hex1eb829abfa4

2111020122020 has 48 divisors (see below), whose sum is σ = 4551266035008. Its totient is φ = 822151524480.

The previous prime is 2111020122017. The next prime is 2111020122031. The reversal of 2111020122020 is 202210201112.

It is a junction number, because it is equal to n+sod(n) for n = 2111020121986 and 2111020122004.

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, 7462394 + ... + 7740113.

It is an arithmetic number, because the mean of its divisors is an integer number (94818042396).

Almost surely, 22111020122020 is an apocalyptic number.

2111020122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111020122020 is an abundant number, since it is smaller than the sum of its proper divisors (2440245912988).

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

2111020122020 is a wasteful number, since it uses less digits than its factorization.

2111020122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202700 (or 15202698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2111020122020 its reverse (202210201112), we get a palindrome (2313230323132).

The spelling of 2111020122020 in words is "two trillion, one hundred eleven billion, twenty million, one hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 131 212 262 265 524 530 655 1060 1310 2620 6943 13886 27772 34715 69430 138860 15202507 30405014 60810028 76012535 152025070 304050140 805732871 1611465742 1991528417 3222931484 3983056834 4028664355 7966113668 8057328710 9957642085 16114657420 19915284170 39830568340 105551006101 211102012202 422204024404 527755030505 1055510061010 2111020122020