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121220132200201 = 1096936611603249
BaseRepresentation
bin11011100011111111000010…
…111010110101111100001001
3120220012112100102202212202101
4123203333002322311330021
5111342032312320401301
61105451432052233401
734350602610600346
oct3343770272657411
9526175312685671
10121220132200201
1135696195474291
121171933500b861
1352840178c8378
1421d112b2537cd
15e033319c2701
hex6e3fc2eb5f09

121220132200201 has 8 divisors (see below), whose sum is σ = 122332496165000. Its totient is φ = 120107772829440.

The previous prime is 121220132200163. The next prime is 121220132200207. The reversal of 121220132200201 is 102002231022121.

It can be written as a sum of positive squares in 4 ways, for example, as 92592025125625 + 28628107074576 = 9622475^2 + 5350524^2 .

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 121220132200201 - 237 = 121082693246729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220132200207) 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, 74807425 + ... + 76410673.

It is an arithmetic number, because the mean of its divisors is an integer number (15291562020625).

Almost surely, 2121220132200201 is an apocalyptic number.

It is an amenable number.

121220132200201 is a deficient number, since it is larger than the sum of its proper divisors (1112363964799).

121220132200201 is a wasteful number, since it uses less digits than its factorization.

121220132200201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297019.

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

Adding to 121220132200201 its reverse (102002231022121), we get a palindrome (223222363222322).

The spelling of 121220132200201 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirty-two million, two hundred thousand, two hundred one".

Divisors: 1 109 693661 1603249 75609049 174754141 1112111304589 121220132200201