Search a number
-
+
2112202112020 = 22571113176206153
BaseRepresentation
bin11110101111001001000…
…011100111110000010100
321110220221222220201010121
4132233021003213300110
5234101242220041040
64254155433401324
7305413223502130
oct36571103476024
97426858821117
102112202112020
11744864033290
122a1438269244
13124245052030
14743343003c0
1539e235acc4a
hex1ebc90e7c14

2112202112020 has 192 divisors, whose sum is σ = 6305849657856. Its totient is φ = 571958968320.

The previous prime is 2112202111997. The next prime is 2112202112063. The reversal of 2112202112020 is 202112022112.

It is a happy number.

It is a super-2 number, since 2×21122021120202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112202111985 and 2112202112003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2762737 + ... + 3443416.

It is an arithmetic number, because the mean of its divisors is an integer number (32842966968).

Almost surely, 22112202112020 is an apocalyptic number.

2112202112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112202112020 is an abundant number, since it is smaller than the sum of its proper divisors (4193647545836).

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

2112202112020 is a wasteful number, since it uses less digits than its factorization.

2112202112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206210 (or 6206208 counting only the distinct ones).

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

Adding to 2112202112020 its reverse (202112022112), we get a palindrome (2314314134132).

It can be divided in two parts, 2112202 and 112020, that added together give a palindrome (2224222).

The spelling of 2112202112020 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred twelve thousand, twenty".