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1212001212102 = 23238782617479
BaseRepresentation
bin10001101000110000111…
…001101101011011000110
311021212101110002212000120
4101220300321231123012
5124324134302241402
62324441412122410
7153364343215422
oct21506071553306
94255343085016
101212001212102
114280090a63aa
12176a88906406
138a3a2a85145
144293837db82
15217d85ea3bc
hex11a30e6d6c6

1212001212102 has 16 divisors (see below), whose sum is σ = 2529393834240. Its totient is φ = 386435169032.

The previous prime is 1212001212067. The next prime is 1212001212109. The reversal of 1212001212102 is 2012121002121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212001212109) 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, 4391308602 + ... + 4391308877.

It is an arithmetic number, because the mean of its divisors is an integer number (158087114640).

Almost surely, 21212001212102 is an apocalyptic number.

1212001212102 is an abundant number, since it is smaller than the sum of its proper divisors (1317392622138).

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

1212001212102 is a wasteful number, since it uses less digits than its factorization.

1212001212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8782617507.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212001212102 its reverse (2012121002121), we get a palindrome (3224122214223).

The spelling of 1212001212102 in words is "one trillion, two hundred twelve billion, one million, two hundred twelve thousand, one hundred two".

Divisors: 1 2 3 6 23 46 69 138 8782617479 17565234958 26347852437 52695704874 202000202017 404000404034 606000606051 1212001212102