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2220212111012 = 22779293289679
BaseRepresentation
bin100000010011101110111…
…101000100011010100100
321212020202101210011022122
4200103232331010122210
5242333443300023022
64415541254445112
7316255632364310
oct40235675043244
97766671704278
102220212111012
1178664a946165
122ba360663798
13131499195b3c
147965d0acb40
153cb45b1a742
hex204eef446a4

2220212111012 has 12 divisors (see below), whose sum is σ = 4440424222080. Its totient is φ = 951519476136.

The previous prime is 2220212111011. The next prime is 2220212111053. The reversal of 2220212111012 is 2101112120222.

2220212111012 is an admirable number.

It is a super-2 number, since 2×22202121110122 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220212111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39646644812 + ... + 39646644867.

It is an arithmetic number, because the mean of its divisors is an integer number (370035351840).

Almost surely, 22220212111012 is an apocalyptic number.

It is an amenable number.

2220212111012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220212111012 is a wasteful number, since it uses less digits than its factorization.

2220212111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79293289690 (or 79293289688 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2220212111012 its reverse (2101112120222), we get a palindrome (4321324231234).

The spelling of 2220212111012 in words is "two trillion, two hundred twenty billion, two hundred twelve million, one hundred eleven thousand, twelve".

Divisors: 1 2 4 7 14 28 79293289679 158586579358 317173158716 555053027753 1110106055506 2220212111012