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112121002210021 = 723665436768221
BaseRepresentation
bin11001011111100100110100…
…100000100011001011100101
3112200222122220102101210021021
4121133210310200203023211
5104143442303031210041
61034243402150051141
732421321646034260
oct3137446440431345
9480878812353237
10112121002210021
11327a8282839342
12106a9974949ab1
134a73c71551c6c
141d98984c9bcd7
15ce67d0661cd1
hex65f9348232e5

112121002210021 has 8 divisors (see below), whose sum is σ = 128138361318144. Its totient is φ = 96103661371440.

The previous prime is 112121002209971. The next prime is 112121002210027. The reversal of 112121002210021 is 120012200121211.

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 112121002210021 - 219 = 112121001685733 is a prime.

It is a super-2 number, since 2×1121210022100212 (a number of 29 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 = 112121002209977 and 112121002210004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121002210027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13181691 + ... + 19949911.

It is an arithmetic number, because the mean of its divisors is an integer number (16017295164768).

Almost surely, 2112121002210021 is an apocalyptic number.

It is an amenable number.

112121002210021 is a deficient number, since it is larger than the sum of its proper divisors (16017359108123).

112121002210021 is an equidigital number, since it uses as much as digits as its factorization.

112121002210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9134771.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121002210021 its reverse (120012200121211), we get a palindrome (232133202331232).

The spelling of 112121002210021 in words is "one hundred twelve trillion, one hundred twenty-one billion, two million, two hundred ten thousand, twenty-one".

Divisors: 1 7 2366543 6768221 16565801 47377547 16017286030003 112121002210021