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1200421212301 = 7940961360607
BaseRepresentation
bin10001011101111110101…
…011100001000010001101
311020202111102021220122001
4101131332223201002031
5124131430312243201
62315244344352301
7152504361643153
oct21357653410215
94222442256561
101200421212301
11423106530133
12174796775691
138927894545c
144215a4513d3
152135bb8e301
hex1177eae108d

1200421212301 has 16 divisors (see below), whose sum is σ = 1220596633600. Its totient is φ = 1180379910528.

The previous prime is 1200421212293. The next prime is 1200421212307. The reversal of 1200421212301 is 1032121240021.

It is a cyclic number.

It is not a de Polignac number, because 1200421212301 - 23 = 1200421212293 is a prime.

It is a super-2 number, since 2×12004212123012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200421212307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19776340 + ... + 19836946.

It is an arithmetic number, because the mean of its divisors is an integer number (76287289600).

Almost surely, 21200421212301 is an apocalyptic number.

It is an amenable number.

1200421212301 is a deficient number, since it is larger than the sum of its proper divisors (20175421299).

1200421212301 is an equidigital number, since it uses as much as digits as its factorization.

1200421212301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61708.

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

Adding to 1200421212301 its reverse (1032121240021), we get a palindrome (2232542452322).

The spelling of 1200421212301 in words is "one trillion, two hundred billion, four hundred twenty-one million, two hundred twelve thousand, three hundred one".

Divisors: 1 79 409 613 32311 48427 60607 250717 4787953 19806643 24788263 37152091 1958272777 2935015189 15195205219 1200421212301