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120020212020001 = 769672115593681
BaseRepresentation
bin11011010010100001100010…
…000110100111001100100001
3120201221211010221021000221211
4123102201202012213030201
5111212402343234120001
61103132305122350121
734165113511420156
oct3322414206471441
9521854127230854
10120020212020001
1135273316845a77
121156487a1bb341
1351c7b1ba09a17
14218d01b58622d
15dd2003d02351
hex6d28621a7321

120020212020001 has 4 divisors (see below), whose sum is σ = 120020235310404. Its totient is φ = 120020188729600.

The previous prime is 120020212019999. The next prime is 120020212020041. The reversal of 120020212020001 is 100020212020021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31517725824225 + 88502486195776 = 5614065^2 + 9407576^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020212020001 - 21 = 120020212019999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120020212020041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100120 + ... + 15493561.

It is an arithmetic number, because the mean of its divisors is an integer number (30005058827601).

Almost surely, 2120020212020001 is an apocalyptic number.

It is an amenable number.

120020212020001 is a deficient number, since it is larger than the sum of its proper divisors (23290403).

120020212020001 is an equidigital number, since it uses as much as digits as its factorization.

120020212020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23290402.

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

Adding to 120020212020001 its reverse (100020212020021), we get a palindrome (220040424040022).

The spelling of 120020212020001 in words is "one hundred twenty trillion, twenty billion, two hundred twelve million, twenty thousand, one".

Divisors: 1 7696721 15593681 120020212020001