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120021021112 = 2319789611981
BaseRepresentation
bin110111111000111001…
…1110111000110111000
3102110210110201121001011
41233301303313012320
53431300340133422
6131045323003304
711446142563306
oct1576163670670
9373713647034
10120021021112
114699a812643
121b316969534
13b4196674b5
145b48059276
1531c6c59077
hex1bf1cf71b8

120021021112 has 16 divisors (see below), whose sum is σ = 236883594600. Its totient is φ = 56852062560.

The previous prime is 120021021077. The next prime is 120021021137. The reversal of 120021021112 is 211120120021.

It is a junction number, because it is equal to n+sod(n) for n = 120021021092 and 120021021101.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 394805839 + ... + 394806142.

Almost surely, 2120021021112 is an apocalyptic number.

It is an amenable number.

120021021112 is a deficient number, since it is larger than the sum of its proper divisors (116862573488).

120021021112 is a wasteful number, since it uses less digits than its factorization.

120021021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789612006 (or 789612002 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120021021112 its reverse (211120120021), we get a palindrome (331141141133).

The spelling of 120021021112 in words is "one hundred twenty billion, twenty-one million, twenty-one thousand, one hundred twelve".

Divisors: 1 2 4 8 19 38 76 152 789611981 1579223962 3158447924 6316895848 15002627639 30005255278 60010510556 120021021112