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12110210201021 = 55742349513397
BaseRepresentation
bin1011000000111010000011…
…0001101111010110111101
31120212201120101000101202112
42300032200301233112331
53041403202302413041
641431204225103405
72356635204164642
oct260164061572675
946781511011675
1012110210201021
113949a02a45069
121437058a87b65
1369acac605c9a
142dc1cca7bdc9
151600336d9deb
hexb03a0c6f5bd

12110210201021 has 8 divisors (see below), whose sum is σ = 12132262157400. Its totient is φ = 12088159357248.

The previous prime is 12110210200993. The next prime is 12110210201053. The reversal of 12110210201021 is 12010201201121.

It can be written as a sum of positive squares in 4 ways, for example, as 92409312121 + 12017800888900 = 303989^2 + 3466670^2 .

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 12110210201021 - 214 = 12110210184637 is a prime.

It is a super-2 number, since 2×121102102010212 (a number of 27 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 = 12110210200987 and 12110210201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110210201071) 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, 23331695 + ... + 23845091.

It is an arithmetic number, because the mean of its divisors is an integer number (1516532769675).

Almost surely, 212110210201021 is an apocalyptic number.

It is an amenable number.

12110210201021 is a deficient number, since it is larger than the sum of its proper divisors (22051956379).

12110210201021 is an equidigital number, since it uses as much as digits as its factorization.

12110210201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556303.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110210201021 its reverse (12010201201121), we get a palindrome (24120411402142).

The spelling of 12110210201021 in words is "twelve trillion, one hundred ten billion, two hundred ten million, two hundred one thousand, twenty-one".

Divisors: 1 557 42349 513397 23588393 285962129 21741849553 12110210201021