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2222021212012 = 227431743247813
BaseRepresentation
bin100000010101011010110…
…010001111011101101100
321212102102110221000100101
4200111122302033131230
5242401144412241022
64420441002040444
7316351520445250
oct40253262173554
97772373830311
102222021212012
11787399056558
122ba7864a9124
131316c6c214c4
1479791474260
153cbee870627
hex2055ac8f76c

2222021212012 has 48 divisors (see below), whose sum is σ = 4460366518272. Its totient is φ = 948802760640.

The previous prime is 2222021212009. The next prime is 2222021212013. The reversal of 2222021212012 is 2102121202222.

2222021212012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2222021212013) 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, 8842618 + ... + 9090430.

It is an arithmetic number, because the mean of its divisors is an integer number (92924302464).

Almost surely, 22222021212012 is an apocalyptic number.

It is an amenable number.

2222021212012 is an abundant number, since it is smaller than the sum of its proper divisors (2238345306260).

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

2222021212012 is a wasteful number, since it uses less digits than its factorization.

2222021212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248998 (or 248996 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2222021212012 its reverse (2102121202222), we get a palindrome (4324142414234).

The spelling of 2222021212012 in words is "two trillion, two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, twelve".

Divisors: 1 2 4 7 14 28 431 743 862 1486 1724 2972 3017 5201 6034 10402 12068 20804 247813 320233 495626 640466 991252 1280932 1734691 2241631 3469382 4483262 6938764 8966524 106807403 184125059 213614806 368250118 427229612 736500236 747651821 1288875413 1495303642 2577750826 2990607284 5155501652 79357900429 158715800858 317431601716 555505303003 1111010606006 2222021212012