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212201231202 = 23211788957289
BaseRepresentation
bin1100010110100000101…
…1011101001101100010
3202021201200001110011100
43011220023131031202
511434042003344302
6241252304455230
721221354463432
oct3055013351542
9667650043140
10212201231202
1181aa3076854
123516191a516
131701a07c4cc
14a3b07222c2
1557be6e3d1c
hex31682dd362

212201231202 has 12 divisors (see below), whose sum is σ = 459769334310. Its totient is φ = 70733743728.

The previous prime is 212201231159. The next prime is 212201231261. The reversal of 212201231202 is 202132102212.

212201231202 is a `hidden beast` number, since 212 + 20 + 1 + 231 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 205870005441 + 6331225761 = 453729^2 + 79569^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11788957289 = 212201231202 / (2 + 1 + 2 + 2 + 0 + 1 + 2 + 3 + 1 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5894478627 + ... + 5894478662.

Almost surely, 2212201231202 is an apocalyptic number.

212201231202 is an abundant number, since it is smaller than the sum of its proper divisors (247568103108).

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

212201231202 is a wasteful number, since it uses less digits than its factorization.

212201231202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11788957297 (or 11788957294 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212201231202 its reverse (202132102212), we get a palindrome (414333333414).

The spelling of 212201231202 in words is "two hundred twelve billion, two hundred one million, two hundred thirty-one thousand, two hundred two".

Divisors: 1 2 3 6 9 18 11788957289 23577914578 35366871867 70733743734 106100615601 212201231202