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212210111023 = 437962469859
BaseRepresentation
bin1100010110100010110…
…1010101001000101111
3202021202021202120222121
43011220231111020233
511434101242023043
6241253223053411
721221523116221
oct3055055251057
9667667676877
10212210111023
1181aa8091349
12351648a1267
131701bb6b241
14a3b1994411
1557c0399ded
hex3168b5522f

212210111023 has 8 divisors (see below), whose sum is σ = 219893907200. Its totient is φ = 204651254808.

The previous prime is 212210111021. The next prime is 212210111089. The reversal of 212210111023 is 320111012212.

212210111023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212210111023 - 21 = 212210111021 is a prime.

It is a super-2 number, since 2×2122101110232 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212210110988 and 212210111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212210111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31231533 + ... + 31238326.

It is an arithmetic number, because the mean of its divisors is an integer number (27486738400).

Almost surely, 2212210111023 is an apocalyptic number.

212210111023 is a deficient number, since it is larger than the sum of its proper divisors (7683796177).

212210111023 is an equidigital number, since it uses as much as digits as its factorization.

212210111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62469981.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 212210111023 its reverse (320111012212), we get a palindrome (532321123235).

The spelling of 212210111023 in words is "two hundred twelve billion, two hundred ten million, one hundred eleven thousand, twenty-three".

Divisors: 1 43 79 3397 62469859 2686203937 4935118861 212210111023