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1202221122212 = 221199492746327
BaseRepresentation
bin10001011111101001111…
…101101000001010100100
311020221010212010210212002
4101133221331220022210
5124144122101402322
62320143122544432
7152600105634005
oct21375175501244
94227125123762
101202221122212
1142394a533090
12174bb9508118
13894a48034c6
144228b5031ac
1521414bcac92
hex117e9f682a4

1202221122212 has 24 divisors (see below), whose sum is σ = 2295380942400. Its totient is φ = 546409020960.

The previous prime is 1202221122199. The next prime is 1202221122217. The reversal of 1202221122212 is 2122211222021.

It is not an unprimeable number, because it can be changed into a prime (1202221122217) 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, 935408 + ... + 1810919.

It is an arithmetic number, because the mean of its divisors is an integer number (95640872600).

Almost surely, 21202221122212 is an apocalyptic number.

It is an amenable number.

1202221122212 is a deficient number, since it is larger than the sum of its proper divisors (1093159820188).

1202221122212 is a wasteful number, since it uses less digits than its factorization.

1202221122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756291 (or 2756289 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1202221122212 its reverse (2122211222021), we get a palindrome (3324432344233).

The spelling of 1202221122212 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 11 22 44 9949 19898 39796 109439 218878 437756 2746327 5492654 10985308 30209597 60419194 120838388 27323207323 54646414646 109292829292 300555280553 601110561106 1202221122212