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1202221022212 = 227401449238471
BaseRepresentation
bin10001011111101001111…
…101001111110000000100
311020221010211221201200101
4101133221331033300010
5124144122040202322
62320143120453444
7152600105036320
oct21375175176004
94227124851611
101202221022212
1142394a474a41
12174bb947a284
13894a4799b32
144228b4b8980
1521414bab327
hex117e9f4fc04

1202221022212 has 48 divisors (see below), whose sum is σ = 2415816748800. Its totient is φ = 512805888000.

The previous prime is 1202221022201. The next prime is 1202221022243. The reversal of 1202221022212 is 2122201222021.

It is a self number, because there is not a number n which added to its sum of digits gives 1202221022212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4922137 + ... + 5160607.

It is an arithmetic number, because the mean of its divisors is an integer number (50329515600).

Almost surely, 21202221022212 is an apocalyptic number.

It is an amenable number.

1202221022212 is an abundant number, since it is smaller than the sum of its proper divisors (1213595726588).

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

1202221022212 is a wasteful number, since it uses less digits than its factorization.

1202221022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239332 (or 239330 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1202221022212 its reverse (2122201222021), we get a palindrome (3324422244233).

The spelling of 1202221022212 in words is "one trillion, two hundred two billion, two hundred twenty-one million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 401 449 802 898 1604 1796 2807 3143 5614 6286 11228 12572 180049 238471 360098 476942 720196 953884 1260343 1669297 2520686 3338594 5041372 6677188 95626871 107073479 191253742 214146958 382507484 428293916 669388097 749514353 1338776194 1499028706 2677552388 2998057412 42936465079 85872930158 171745860316 300555255553 601110511106 1202221022212