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1213202223201 = 37328431948553
BaseRepresentation
bin10001101001111000011…
…111001101000001100001
311021222111011000112112010
4101221320133031001201
5124334114232120301
62325200514023133
7153436165514463
oct21517037150141
94258434015463
101213202223201
11428575032861
12177162b77aa9
138a5348418b7
1442a0da94133
1521858c855d6
hex11a787cd061

1213202223201 has 16 divisors (see below), whose sum is σ = 1640339522496. Its totient is φ = 797441008896.

The previous prime is 1213202223187. The next prime is 1213202223217. The reversal of 1213202223201 is 1023222023121.

It is not a de Polignac number, because 1213202223201 - 218 = 1213201961057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213202223221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351660 + ... + 1596893.

It is an arithmetic number, because the mean of its divisors is an integer number (102521220156).

Almost surely, 21213202223201 is an apocalyptic number.

It is an amenable number.

1213202223201 is a deficient number, since it is larger than the sum of its proper divisors (427137299295).

1213202223201 is a wasteful number, since it uses less digits than its factorization.

1213202223201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951472.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1213202223201 its reverse (1023222023121), we get a palindrome (2236424246322).

The spelling of 1213202223201 in words is "one trillion, two hundred thirteen billion, two hundred two million, two hundred twenty-three thousand, two hundred one".

Divisors: 1 3 73 219 2843 8529 207539 622617 1948553 5845659 142244369 426733107 5539736179 16619208537 404400741067 1213202223201