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10012212101 = 17588953653
BaseRepresentation
bin10010101001100011…
…00011101110000101
3221211202202001222102
421110301203232011
5131001111241401
64333300241445
7503053253513
oct112461435605
927752661872
1010012212101
1142786a6161
121b350a0285
13c373a4b78
146ada214b3
153d8ec156b
hex254c63b85

10012212101 has 4 divisors (see below), whose sum is σ = 10601165772. Its totient is φ = 9423258432.

The previous prime is 10012212079. The next prime is 10012212103. The reversal of 10012212101 is 10121221001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10121221001 = 23440053087.

It can be written as a sum of positive squares in 2 ways, for example, as 5583975076 + 4428237025 = 74726^2 + 66545^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012212101 - 222 = 10008017797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012212103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294476810 + ... + 294476843.

It is an arithmetic number, because the mean of its divisors is an integer number (2650291443).

Almost surely, 210012212101 is an apocalyptic number.

It is an amenable number.

10012212101 is a deficient number, since it is larger than the sum of its proper divisors (588953671).

10012212101 is an equidigital number, since it uses as much as digits as its factorization.

10012212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588953670.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10012212101 its reverse (10121221001), we get a palindrome (20133433102).

The spelling of 10012212101 in words is "ten billion, twelve million, two hundred twelve thousand, one hundred one".

Divisors: 1 17 588953653 10012212101