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20212201121001 = 323379781618961
BaseRepresentation
bin1001001100010000001010…
…00100010110010011101001
32122120021020001022100122120
410212020011010112103221
510122124041441333001
6110553205040341453
74154166120546141
oct446100504262351
978507201270576
1020212201121001
116492a4566900a
122325315314889
13b38005325026
144dc3c0951921
15250b74557236
hex1262051164e9

20212201121001 has 32 divisors (see below), whose sum is σ = 29179105390848. Its totient is φ = 12411305533440.

The previous prime is 20212201120957. The next prime is 20212201121009. The reversal of 20212201121001 is 10012110221202.

It is not a de Polignac number, because 20212201121001 - 222 = 20212196926697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20212201121009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40561840 + ... + 41057121.

It is an arithmetic number, because the mean of its divisors is an integer number (911847043464).

Almost surely, 220212201121001 is an apocalyptic number.

It is an amenable number.

20212201121001 is a deficient number, since it is larger than the sum of its proper divisors (8966904269847).

20212201121001 is a wasteful number, since it uses less digits than its factorization.

20212201121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81619121.

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

Adding to 20212201121001 its reverse (10012110221202), we get a palindrome (30224311342203).

The spelling of 20212201121001 in words is "twenty trillion, two hundred twelve billion, two hundred one million, one hundred twenty-one thousand, one".

Divisors: 1 3 23 37 69 97 111 291 851 2231 2553 3589 6693 10767 82547 247641 81618961 244856883 1877236103 3019901557 5631708309 7917039217 9059704671 23751117651 69457735811 182091901991 208373207433 292930451029 546275705973 878791353087 6737400373667 20212201121001