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20012201010101 = 411716972842813
BaseRepresentation
bin1001000110011011101000…
…01000011110001110110101
32121212010222200211001000202
410203031310020132032311
510110334441424310401
6110321251144050245
74133555665630616
oct443156410361665
977763880731022
1020012201010101
116416143831563
1222b25b9763985
13b221b0c97541
144d284a841c0d
1524a86b0b006b
hex12337421e3b5

20012201010101 has 8 divisors (see below), whose sum is σ = 20500430083224. Its totient is φ = 19523977966080.

The previous prime is 20012201010089. The next prime is 20012201010119. The reversal of 20012201010101 is 10101010221002.

It can be written as a sum of positive squares in 4 ways, for example, as 1087317135025 + 18924883875076 = 1042745^2 + 4350274^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20012201010101 is a prime.

It is a Duffinian number.

20012201010101 is a modest number, since divided by 1010101 gives 200122 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012201040101) 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, 5618171 + ... + 8460983.

It is an arithmetic number, because the mean of its divisors is an integer number (2562553760403).

Almost surely, 220012201010101 is an apocalyptic number.

It is an amenable number.

20012201010101 is a deficient number, since it is larger than the sum of its proper divisors (488229073123).

20012201010101 is a wasteful number, since it uses less digits than its factorization.

20012201010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014551.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20012201010101 its reverse (10101010221002), we get a palindrome (30113211231103).

The spelling of 20012201010101 in words is "twenty trillion, twelve billion, two hundred one million, ten thousand, one hundred one".

Divisors: 1 41 171697 2842813 7039577 116555333 488102463661 20012201010101