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120212102001001 = 421972848830533
BaseRepresentation
bin11011010101010100001111…
…101000110011000101101001
3120202122011110002010001212011
4123111110033220303011221
5111224023341103013001
61103400402142515521
734215015644353003
oct3325241750630551
9522564402101764
10120212102001001
113533773672492a
1211595ab1895ba1
13520cc4ca74b8a
142198422521373
15dd6ed5297d51
hex6d550fa33169

120212102001001 has 4 divisors (see below), whose sum is σ = 120214950873732. Its totient is φ = 120209253128272.

The previous prime is 120212102000983. The next prime is 120212102001007. The reversal of 120212102001001 is 100100201212021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8260910672400 + 111951191328601 = 2874180^2 + 10580699^2 .

It is a cyclic number.

It is not a de Polignac number, because 120212102001001 - 213 = 120212101992809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120212102001007) 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, 1424373070 + ... + 1424457463.

It is an arithmetic number, because the mean of its divisors is an integer number (30053737718433).

Almost surely, 2120212102001001 is an apocalyptic number.

It is an amenable number.

120212102001001 is a deficient number, since it is larger than the sum of its proper divisors (2848872731).

120212102001001 is an equidigital number, since it uses as much as digits as its factorization.

120212102001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848872730.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120212102001001 its reverse (100100201212021), we get a palindrome (220312303213022).

The spelling of 120212102001001 in words is "one hundred twenty trillion, two hundred twelve billion, one hundred two million, one thousand, one".

Divisors: 1 42197 2848830533 120212102001001