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120221002123331 = 168897118301979
BaseRepresentation
bin11011010101011100100010…
…001000000100100001000011
3120202200000102100021010110112
4123111130202020010201003
5111224200103020421311
61103404433235221535
734215452335221344
oct3325344210044103
9522600370233415
10120221002123331
11353404935a852a
12115977764478ab
135210a3a925255
142198a285780cb
15dd73567e628b
hex6d5722204843

120221002123331 has 4 divisors (see below), whose sum is σ = 120228120442200. Its totient is φ = 120213883804464.

The previous prime is 120221002123177. The next prime is 120221002123357. The reversal of 120221002123331 is 133321200122021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120221002123331 is a prime.

It is a super-2 number, since 2×1202210021233312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120221002123297 and 120221002123306.

It is not an unprimeable number, because it can be changed into a prime (120221002123361) 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, 3559134101 + ... + 3559167878.

It is an arithmetic number, because the mean of its divisors is an integer number (30057030110550).

Almost surely, 2120221002123331 is an apocalyptic number.

120221002123331 is a deficient number, since it is larger than the sum of its proper divisors (7118318869).

120221002123331 is an equidigital number, since it uses as much as digits as its factorization.

120221002123331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118318868.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 120221002123331 its reverse (133321200122021), we get a palindrome (253542202245352).

The spelling of 120221002123331 in words is "one hundred twenty trillion, two hundred twenty-one billion, two million, one hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 16889 7118301979 120221002123331