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10110212121 = 389139272417
BaseRepresentation
bin10010110101001110…
…11001100000011001
3222002121010222201210
421122213121200121
5131201203241441
64351120533333
7505353246042
oct113247314031
928077128653
1010110212121
114318a51009
121b61a81249
13c51798249
146bca518c9
153e28cd616
hex25a9d9819

10110212121 has 16 divisors (see below), whose sum is σ = 13729867200. Its totient is φ = 6616439808.

The previous prime is 10110212111. The next prime is 10110212191. The reversal of 10110212121 is 12121201101.

It is not a de Polignac number, because 10110212121 - 25 = 10110212089 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10110212097 and 10110212106.

It is not an unprimeable number, because it can be changed into a prime (10110212111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99096 + ... + 173321.

It is an arithmetic number, because the mean of its divisors is an integer number (858116700).

Almost surely, 210110212121 is an apocalyptic number.

It is an amenable number.

10110212121 is a deficient number, since it is larger than the sum of its proper divisors (3619655079).

10110212121 is a wasteful number, since it uses less digits than its factorization.

10110212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272648.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10110212121 its reverse (12121201101), we get a palindrome (22231413222).

The spelling of 10110212121 in words is "ten billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-one".

Divisors: 1 3 89 139 267 417 12371 37113 272417 817251 24245113 37865963 72735339 113597889 3370070707 10110212121