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10122201101 = 27773645013
BaseRepresentation
bin10010110110101010…
…01000100000001101
3222010102201002112002
421123111020200031
5131212240413401
64352225522045
7505560201245
oct113325104015
928112632462
1010122201101
11432479a561
121b65aa3325
13c5410520c
146c0492b25
153e399aa6b
hex25b54880d

10122201101 has 4 divisors (see below), whose sum is σ = 10125848892. Its totient is φ = 10118553312.

The previous prime is 10122201079. The next prime is 10122201121. The reversal of 10122201101 is 10110222101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10110222101 = 71444317443.

It can be written as a sum of positive squares in 2 ways, for example, as 3979717225 + 6142483876 = 63085^2 + 78374^2 .

It is a cyclic number.

It is not a de Polignac number, because 10122201101 - 226 = 10055092237 is a prime.

It is a super-2 number, since 2×101222011012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122201121) 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, 1819730 + ... + 1825283.

It is an arithmetic number, because the mean of its divisors is an integer number (2531462223).

Almost surely, 210122201101 is an apocalyptic number.

It is an amenable number.

10122201101 is a deficient number, since it is larger than the sum of its proper divisors (3647791).

10122201101 is an equidigital number, since it uses as much as digits as its factorization.

10122201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647790.

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

Adding to 10122201101 its reverse (10110222101), we get a palindrome (20232423202).

The spelling of 10122201101 in words is "ten billion, one hundred twenty-two million, two hundred one thousand, one hundred one".

Divisors: 1 2777 3645013 10122201101