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12050425501220 = 2253154931909777
BaseRepresentation
bin1010111101011011010101…
…0101001101011000100100
31120200000020212112222100202
42233112311111031120210
53034413232412014340
641343520011330032
72352420530500421
oct257266525153044
946600225488322
1012050425501220
113926614050257
121427553150918
1369547265c282
142d935aa30d48
1515d6d4d14c15
hexaf5b554d624

12050425501220 has 24 divisors (see below), whose sum is σ = 25305987013944. Its totient is φ = 4820152398336.

The previous prime is 12050425501217. The next prime is 12050425501267. The reversal of 12050425501220 is 2210552405021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 191989443556 + 11858436057664 = 438166^2 + 3443608^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5354972 + ... + 7264748.

It is an arithmetic number, because the mean of its divisors is an integer number (1054416125581).

Almost surely, 212050425501220 is an apocalyptic number.

12050425501220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12050425501220 is an abundant number, since it is smaller than the sum of its proper divisors (13255561512724).

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

12050425501220 is a wasteful number, since it uses less digits than its factorization.

12050425501220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225279 (or 2225277 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 12050425501220 its reverse (2210552405021), we get a palindrome (14260977906241).

The spelling of 12050425501220 in words is "twelve trillion, fifty billion, four hundred twenty-five million, five hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 315493 630986 1261972 1577465 1909777 3154930 3819554 6309860 7639108 9548885 19097770 38195540 602521275061 1205042550122 2410085100244 3012606375305 6025212750610 12050425501220