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120010012221 = 3113636667037
BaseRepresentation
bin110111111000100100…
…1110111011000111101
3102110202201000021200110
41233301021313120331
53431240030342341
6131044251020233
711445650162361
oct1576111673075
9373681007613
10120010012221
1146994583490
121b31313a679
13b4172b1668
145b467d12a1
1531c5cd2216
hex1bf127763d

120010012221 has 8 divisors (see below), whose sum is σ = 174560017824. Its totient is φ = 72733340720.

The previous prime is 120010012219. The next prime is 120010012261. The reversal of 120010012221 is 122210010021.

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 120010012221 - 21 = 120010012219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120010012197 and 120010012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120010012261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1818333486 + ... + 1818333551.

It is an arithmetic number, because the mean of its divisors is an integer number (21820002228).

Almost surely, 2120010012221 is an apocalyptic number.

120010012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120010012221 is a deficient number, since it is larger than the sum of its proper divisors (54550005603).

120010012221 is a wasteful number, since it uses less digits than its factorization.

120010012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636667051.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120010012221 its reverse (122210010021), we get a palindrome (242220022242).

The spelling of 120010012221 in words is "one hundred twenty billion, ten million, twelve thousand, two hundred twenty-one".

Divisors: 1 3 11 33 3636667037 10910001111 40003337407 120010012221