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120110121021221 = 1974783127471471
BaseRepresentation
bin11011010011110101010001…
…000110001110111100100101
3120202021102012211220112012222
4123103311101012032330211
5111220341011440134341
61103241454452322125
734204445524341152
oct3323652106167445
9522242184815188
10120110121021221
11352a8464063361
121157a190613345
135203449a1a566
14219350a357229
15dd45171a644b
hex6d3d5118ef25

120110121021221 has 8 divisors (see below), whose sum is σ = 120745057365504. Its totient is φ = 119475439629840.

The previous prime is 120110121021173. The next prime is 120110121021229. The reversal of 120110121021221 is 122120121011021.

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-120110121021221 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 120110121021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120110121021229) 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, 62793485 + ... + 64677986.

It is an arithmetic number, because the mean of its divisors is an integer number (15093132170688).

Almost surely, 2120110121021221 is an apocalyptic number.

It is an amenable number.

120110121021221 is a deficient number, since it is larger than the sum of its proper divisors (634936344283).

120110121021221 is a wasteful number, since it uses less digits than its factorization.

120110121021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127476451.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120110121021221 its reverse (122120121011021), we get a palindrome (242230242032242).

The spelling of 120110121021221 in words is "one hundred twenty trillion, one hundred ten billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-one".

Divisors: 1 197 4783 942251 127471471 25111879787 609696045793 120110121021221