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1202201201212 = 22112317912775197
BaseRepresentation
bin10001011111101000110…
…001101000101000111100
311020221002110122201101021
4101133220301220220330
5124144102001414322
62320141131553524
7152566444414204
oct21375061505074
94227073581337
101202201201212
1142393a267150
12174bb28bb8a4
13894a064a02b
14422889d9404
15214130934c7
hex117e8c68a3c

1202201201212 has 96 divisors (see below), whose sum is σ = 2410627806720. Its totient is φ = 519269118720.

The previous prime is 1202201201203. The next prime is 1202201201231. The reversal of 1202201201212 is 2121021022021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231323398 + ... + 231328594.

It is an arithmetic number, because the mean of its divisors is an integer number (25110706320).

Almost surely, 21202201201212 is an apocalyptic number.

It is an amenable number.

1202201201212 is an abundant number, since it is smaller than the sum of its proper divisors (1208426605508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202201201212 is a wasteful number, since it uses less digits than its factorization.

1202201201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691 (or 6689 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1202201201212 its reverse (2121021022021), we get a palindrome (3323222223233).

The spelling of 1202201201212 in words is "one trillion, two hundred two billion, two hundred one million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 22 23 44 46 92 179 253 358 506 716 1012 1277 1969 2554 3938 4117 5108 5197 7876 8234 10394 14047 16468 20788 28094 29371 45287 56188 57167 58742 90574 114334 117484 119531 181148 228583 228668 239062 323081 457166 478124 646162 914332 930263 1292324 1314841 1860526 2514413 2629682 3721052 5028826 5257409 5259364 6636569 10057652 10232893 10514818 13273138 20465786 21029636 21396049 26546276 40931572 42792098 57831499 73002259 85584196 115662998 146004518 152641087 231325996 235356539 292009036 305282174 470713078 610564348 941426156 1187945851 1679051957 2375891702 3358103914 4751783404 6716207828 13067404361 26134808722 27322754573 52269617444 54645509146 109291018292 300550300303 601100600606 1202201201212