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1213132012210 = 25173701232377
BaseRepresentation
bin10001101001110100010…
…011010111101010110010
311021222022020220110011001
4101221310103113222302
5124333443243342320
62325145525112214
7153434353651636
oct21516423275262
94258266813131
101213132012210
11428539438248
1217714355866a
138a52312b031
1442a04618dc6
1521852a1720a
hex11a744d7ab2

1213132012210 has 16 divisors (see below), whose sum is σ = 2196259807896. Its totient is φ = 482447874688.

The previous prime is 1213132012207. The next prime is 1213132012229. The reversal of 1213132012210 is 122102313121.

It can be written as a sum of positive squares in 4 ways, for example, as 977304256569 + 235827755641 = 988587^2 + 485621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350614459 + ... + 350617918.

Almost surely, 21213132012210 is an apocalyptic number.

1213132012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213132012210 is a deficient number, since it is larger than the sum of its proper divisors (983127795686).

1213132012210 is a wasteful number, since it uses less digits than its factorization.

1213132012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701232557.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1213132012210 its reverse (122102313121), we get a palindrome (1335234325331).

The spelling of 1213132012210 in words is "one trillion, two hundred thirteen billion, one hundred thirty-two million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 173 346 865 1730 701232377 1402464754 3506161885 7012323770 121313201221 242626402442 606566006105 1213132012210