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20012022002001 = 3157169925007869
BaseRepresentation
bin1001000110011011010010…
…11101100111000101010001
32121212010112012222111002010
410203031221131213011101
510110334110113031001
6110321221311213133
74133551363243251
oct443155135470521
977763465874063
1020012022002001
116416061787087
1222b25698171a9
13b22182b7cca3
144d2830b65961
1524a85a5008d6
hex123369767151

20012022002001 has 16 divisors (see below), whose sum is σ = 26868455528000. Its totient is φ = 13248568277568.

The previous prime is 20012022001927. The next prime is 20012022002039. The reversal of 20012022002001 is 10020022021002.

It is not a de Polignac number, because 20012022002001 - 238 = 19737144095057 is a prime.

It is a super-2 number, since 2×200120220020012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012022202001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11703706 + ... + 13304163.

It is an arithmetic number, because the mean of its divisors is an integer number (1679278470500).

Almost surely, 220012022002001 is an apocalyptic number.

It is an amenable number.

20012022002001 is a deficient number, since it is larger than the sum of its proper divisors (6856433525999).

20012022002001 is a wasteful number, since it uses less digits than its factorization.

20012022002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25009728.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20012022002001 its reverse (10020022021002), we get a palindrome (30032044023003).

The spelling of 20012022002001 in words is "twenty trillion, twelve billion, twenty-two million, two thousand, one".

Divisors: 1 3 157 471 1699 5097 266743 800229 25007869 75023607 3926235433 11778706299 42488369431 127465108293 6670674000667 20012022002001