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230101111221220 = 22511505055561061
BaseRepresentation
bin110100010100011010010110…
…111111110010101111100100
31010011201110012001221001020201
4310110122112333302233210
5220124434033433034340
62133214554033040244
766316154020142401
oct6424322677625744
91104643161831221
10230101111221220
1167354373619448
12219831786b6084
139b515984b9bc5
1440b6d4b8512a8
151b906d090379a
hexd14696ff2be4

230101111221220 has 12 divisors (see below), whose sum is σ = 483212333564604. Its totient is φ = 92040444488480.

The previous prime is 230101111221103. The next prime is 230101111221221. The reversal of 230101111221220 is 22122111101032.

It can be written as a sum of positive squares in 2 ways, for example, as 118575852676516 + 111525258544704 = 10889254^2 + 10560552^2 .

It is not an unprimeable number, because it can be changed into a prime (230101111221221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5752527780511 + ... + 5752527780550.

It is an arithmetic number, because the mean of its divisors is an integer number (40267694463717).

Almost surely, 2230101111221220 is an apocalyptic number.

230101111221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230101111221220 is an abundant number, since it is smaller than the sum of its proper divisors (253111222343384).

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

230101111221220 is a wasteful number, since it uses less digits than its factorization.

230101111221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11505055561070 (or 11505055561068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 230101111221220 its reverse (22122111101032), we get a palindrome (252223222322252).

The spelling of 230101111221220 in words is "two hundred thirty trillion, one hundred one billion, one hundred eleven million, two hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 11505055561061 23010111122122 46020222244244 57525277805305 115050555610610 230101111221220