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120020221101221 = 754133167512631
BaseRepresentation
bin11011010010100001100010…
…101001010000010010100101
3120201221211011120100102001022
4123102201202221100102211
5111212402403100214341
61103132310045140525
734165113651542060
oct3322414251202245
9521854146312038
10120020221101221
1135273320988911
121156488125a745
1351c7b2086931c
14218d01c86b8d7
15dd20049e7e4b
hex6d2862a504a5

120020221101221 has 8 divisors (see below), whose sum is σ = 137191307117184. Its totient is φ = 102855470121360.

The previous prime is 120020221101181. The next prime is 120020221101227. The reversal of 120020221101221 is 122101122020021.

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

It is a cyclic number.

It is not a de Polignac number, because 120020221101221 - 214 = 120020221084837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120020221101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020221101227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583718425 + ... + 1583794206.

It is an arithmetic number, because the mean of its divisors is an integer number (17148913389648).

Almost surely, 2120020221101221 is an apocalyptic number.

It is an amenable number.

120020221101221 is a deficient number, since it is larger than the sum of its proper divisors (17171086015963).

120020221101221 is an equidigital number, since it uses as much as digits as its factorization.

120020221101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167518051.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120020221101221 its reverse (122101122020021), we get a palindrome (242121343121242).

The spelling of 120020221101221 in words is "one hundred twenty trillion, twenty billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty-one".

Divisors: 1 7 5413 37891 3167512631 22172588417 17145745871603 120020221101221