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1220112011201 = 17945131510363
BaseRepresentation
bin10001110000010100010…
…101111100111111000001
311022122022201000010201012
4101300110111330333001
5124442242133324301
62332302310450305
7154102340656136
oct21602425747701
94278281003635
101220112011201
114304a0470856
12178571063995
138b096250255
14430a764a58d
1521b106ceebb
hex11c1457cfc1

1220112011201 has 8 divisors (see below), whose sum is σ = 1227200957280. Its totient is φ = 1213026095232.

The previous prime is 1220112011197. The next prime is 1220112011213. The reversal of 1220112011201 is 1021102110221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220112011201 - 22 = 1220112011197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220112019201) 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, 52646 + ... + 1563008.

It is an arithmetic number, because the mean of its divisors is an integer number (153400119660).

Almost surely, 21220112011201 is an apocalyptic number.

It is an amenable number.

1220112011201 is a deficient number, since it is larger than the sum of its proper divisors (7088946079).

1220112011201 is a wasteful number, since it uses less digits than its factorization.

1220112011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515055.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1220112011201 its reverse (1021102110221), we get a palindrome (2241214121422).

The spelling of 1220112011201 in words is "one trillion, two hundred twenty billion, one hundred twelve million, eleven thousand, two hundred one".

Divisors: 1 179 4513 807827 1510363 270354977 6816268219 1220112011201