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20220120210001 = 179226749828657
BaseRepresentation
bin1001001100011110111010…
…00101010001101001010001
32122121000122221110202112011
410212033131011101221101
510122241301233210001
6111000554530102521
74154566266650155
oct446173505215121
978530587422464
1020220120210001
1164963397a2868
12232696541aa41
13b38997b791ca
144dc932597065
15250e898bdd51
hex1263dd151a51

20220120210001 has 8 divisors (see below), whose sum is σ = 20342051341920. Its totient is φ = 20098288740288.

The previous prime is 20220120209987. The next prime is 20220120210071. The reversal of 20220120210001 is 10001202102202.

It is a happy number.

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-20220120210001 is a prime.

It is a super-2 number, since 2×202201202100012 (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 (20220120210071) 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, 24508536 + ... + 25320121.

It is an arithmetic number, because the mean of its divisors is an integer number (2542756417740).

Almost surely, 220220120210001 is an apocalyptic number.

It is an amenable number.

20220120210001 is a deficient number, since it is larger than the sum of its proper divisors (121931131919).

20220120210001 is a wasteful number, since it uses less digits than its factorization.

20220120210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49831103.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20220120210001 its reverse (10001202102202), we get a palindrome (30221322312203).

The spelling of 20220120210001 in words is "twenty trillion, two hundred twenty billion, one hundred twenty million, two hundred ten thousand, one".

Divisors: 1 179 2267 405793 49828657 8919329603 112961565419 20220120210001