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101012211211 = 19223229104107
BaseRepresentation
bin101111000010011001…
…1000000011000001011
3100122201201021222222211
41132010303000120023
53123333111224321
6114223202125551
710204114425412
oct1360463003013
9318651258884
10101012211211
113992583a39a
12176b09508b7
1396aa433aa2
144c6366a479
15296302e0e1
hex1784cc060b

101012211211 has 16 divisors (see below), whose sum is σ = 107272883200. Its totient is φ = 94849727328.

The previous prime is 101012211193. The next prime is 101012211217. The reversal of 101012211211 is 112112210101.

It is a happy number.

It is not a de Polignac number, because 101012211211 - 221 = 101010114059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101012211191 and 101012211200.

It is not an unprimeable number, because it can be changed into a prime (101012211217) 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, 918220 + ... + 1022326.

It is an arithmetic number, because the mean of its divisors is an integer number (6704555200).

Almost surely, 2101012211211 is an apocalyptic number.

101012211211 is a deficient number, since it is larger than the sum of its proper divisors (6260671989).

101012211211 is a wasteful number, since it uses less digits than its factorization.

101012211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104578.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101012211211 its reverse (112112210101), we get a palindrome (213124421312).

The spelling of 101012211211 in words is "one hundred one billion, twelve million, two hundred eleven thousand, two hundred eleven".

Divisors: 1 19 223 229 4237 4351 51067 104107 970273 1978033 23215861 23840503 441101359 452969557 5316432169 101012211211