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120210013220221 = 1973642411675273
BaseRepresentation
bin11011010101010010010011…
…001000101110110101111101
3120202121222001111201000022001
4123111102103020232311331
5111224010101341021341
61103355415005022301
734214613122124061
oct3325222310566575
9522558044630261
10120210013220221
1135336864659a21
121159560a254991
13520c9a90b4812
1421982a4d55aa1
15dd6e11be9d31
hex6d549322ed7d

120210013220221 has 8 divisors (see below), whose sum is σ = 120820620156984. Its totient is φ = 119599410362880.

The previous prime is 120210013220191. The next prime is 120210013220239. The reversal of 120210013220221 is 122022310012021.

It can be written as a sum of positive squares in 4 ways, for example, as 87011789216121 + 33198224004100 = 9328011^2 + 5761790^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120210013220221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120210013220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70917841 + ... + 72593113.

It is an arithmetic number, because the mean of its divisors is an integer number (15102577519623).

Almost surely, 2120210013220221 is an apocalyptic number.

It is an amenable number.

120210013220221 is a deficient number, since it is larger than the sum of its proper divisors (610606936763).

120210013220221 is a wasteful number, since it uses less digits than its factorization.

120210013220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039711.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120210013220221 its reverse (122022310012021), we get a palindrome (242232323232242).

The spelling of 120210013220221 in words is "one hundred twenty trillion, two hundred ten billion, thirteen million, two hundred twenty thousand, two hundred twenty-one".

Divisors: 1 197 364241 1675273 71755477 330028781 610203112793 120210013220221