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101220212201202 = 23223369240632681
BaseRepresentation
bin10111000000111100101010…
…110010101101011011110010
3111021101120001121211211211200
4113000330222302231123302
5101231342443310414302
6555135531252552030
730214630134544503
oct2700745262553362
9437346047754750
10101220212201202
112a285283a89186
12b4291a4322616
134463043075303
141add12789cbaa
15ba7e83b9081c
hex5c0f2acad6f2

101220212201202 has 24 divisors (see below), whose sum is σ = 219319845355260. Its totient is φ = 33738626797440.

The previous prime is 101220212201179. The next prime is 101220212201209. The reversal of 101220212201202 is 202102212022101.

It is a happy number.

101220212201202 is a `hidden beast` number, since 1 + 0 + 1 + 220 + 21 + 220 + 1 + 202 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100815475757481 + 404736443721 = 10040691^2 + 636189^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101220212201209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119895699 + ... + 120736982.

Almost surely, 2101220212201202 is an apocalyptic number.

101220212201202 is an abundant number, since it is smaller than the sum of its proper divisors (118099633154058).

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

101220212201202 is a wasteful number, since it uses less digits than its factorization.

101220212201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240656058 (or 240656055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101220212201202 its reverse (202102212022101), we get a palindrome (303322424223303).

The spelling of 101220212201202 in words is "one hundred one trillion, two hundred twenty billion, two hundred twelve million, two hundred one thousand, two hundred two".

Divisors: 1 2 3 6 9 18 23369 46738 70107 140214 210321 420642 240632681 481265362 721898043 1443796086 2165694129 4331388258 5623345122289 11246690244578 16870035366867 33740070733734 50610106100601 101220212201202