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13021301220212 = 2213569732398961
BaseRepresentation
bin1011110101111100001000…
…0010001010001101110100
31201002211020212111122002102
42331133002002022031310
53201320111103021322
643405523031401232
72512520661110255
oct275370202121564
951084225448072
1013021301220212
11417033708a81a
121563747523218
13735b98b0752c
1433033d068b2c
15178aa9784792
hexbd7c208a374

13021301220212 has 12 divisors (see below), whose sum is σ = 22787303426916. Its totient is φ = 6510643098240.

The previous prime is 13021301220163. The next prime is 13021301220271. The reversal of 13021301220212 is 21202210312031.

It can be written as a sum of positive squares in 2 ways, for example, as 451468423396 + 12569832796816 = 671914^2 + 3545396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4228412 + ... + 6627372.

It is an arithmetic number, because the mean of its divisors is an integer number (1898941952243).

Almost surely, 213021301220212 is an apocalyptic number.

It is an amenable number.

13021301220212 is a deficient number, since it is larger than the sum of its proper divisors (9766002206704).

13021301220212 is a wasteful number, since it uses less digits than its factorization.

13021301220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755938 (or 3755936 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13021301220212 its reverse (21202210312031), we get a palindrome (34223511532243).

The spelling of 13021301220212 in words is "thirteen trillion, twenty-one billion, three hundred one million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 4 1356973 2398961 2713946 4797922 5427892 9595844 3255325305053 6510650610106 13021301220212