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101011211012 = 22613131322621
BaseRepresentation
bin101111000010010111…
…1001100001100000100
3100122201122102011222102
41132010233030030010
53123332332223022
6114223124451232
710204103061365
oct1360457141404
9318648364872
10101011211012
1139925216988
12176b0549b18
1396aa17375a
144c63489b6c
152962dd2a92
hex1784bcc304

101011211012 has 24 divisors (see below), whose sum is σ = 180241635672. Its totient is φ = 49518892800.

The previous prime is 101011211011. The next prime is 101011211113. The reversal of 101011211012 is 210112110101.

It can be written as a sum of positive squares in 4 ways, for example, as 1473484996 + 99537726016 = 38386^2 + 315496^2 .

It is a super-2 number, since 2×1010112110122 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101011210984 and 101011211002.

It is not an unprimeable number, because it can be changed into a prime (101011211011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584939 + ... + 737682.

It is an arithmetic number, because the mean of its divisors is an integer number (7510068153).

Almost surely, 2101011211012 is an apocalyptic number.

It is an amenable number.

101011211012 is a deficient number, since it is larger than the sum of its proper divisors (79230424660).

101011211012 is a wasteful number, since it uses less digits than its factorization.

101011211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322999 (or 1322997 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101011211012 its reverse (210112110101), we get a palindrome (311123321113).

The spelling of 101011211012 in words is "one hundred one billion, eleven million, two hundred eleven thousand, twelve".

Divisors: 1 2 4 61 122 244 313 626 1252 19093 38186 76372 1322621 2645242 5290484 80679881 161359762 322719524 413980373 827960746 1655921492 25252802753 50505605506 101011211012